I went to edit profile, change version, release 1.6.4, and the clicked play, nothing happened, and the launcher stayed open.
this is what the dev. console displays:

[12:21:54 INFO]: Minecraft Launcher 1.4.2 (through bootstrap 5) started on windows...
[12:21:54 INFO]: Current time is May 15, 2014 12:21:54 PM
[12:21:54 INFO]: System.getProperty('os.name') == 'Windows 7'
[12:21:54 INFO]: System.getProperty('os.version') == '6.1'
[12:21:54 INFO]: System.getProperty('os.arch') == 'amd64'
[12:21:54 INFO]: System.getProperty('java.version') == '1.7.0_55'
[12:21:54 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[12:21:54 INFO]: System.getProperty('sun.arch.data.model') == '64'
[12:21:55 INFO]: Refreshing local version list...
[12:21:55 INFO]: Refreshing remote version list...
[12:21:56 INFO]: Refresh complete.
[12:21:56 INFO]: JFX has been detected & successfully loaded
[12:21:57 INFO]: Loaded 1 profile(s); selected 'minecraftmama23'
[12:21:57 INFO]: Refreshing auth...
[12:21:57 INFO]: Logging in with access token
[12:22:14 INFO]: Getting syncinfo for selected version
[12:22:14 INFO]: Queueing library & version downloads
[12:22:14 INFO]: Download job 'Version & Libraries' started (16 threads, 19 files)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries'... (try 0)
[12:22:14 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[12:22:20 INFO]: Download job 'Resources' started (16 threads, 1 files)
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\versions\1.6.4\1.6.4.jar for job 'Version & Libraries'... (try 0)
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde for job 'Resources'... (try 0)
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:20 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:21 WARN]: Couldn't download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
java.lang.RuntimeException: Hash did not match downloaded asset (Expected ad126e435cca94054bf0d616301799a105526cde, downloaded 2daeaa8b5f19f0bc209d976c02bd6acb51b00b0a)
at com.mojang.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:104) ~[launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:108) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
[12:22:21 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde for job 'Resources'... (try 1)
[12:22:21 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:21 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[12:22:21 WARN]: Couldn't download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
java.lang.RuntimeException: Hash did not match downloaded asset (Expected ad126e435cca94054bf0d616301799a105526cde, downloaded 2daeaa8b5f19f0bc209d976c02bd6acb51b00b0a)
at com.mojang.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:104) ~[launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:108) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
[12:22:21 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde for job 'Resources'... (try 2)
[12:22:21 WARN]: Couldn't download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
java.lang.RuntimeException: Hash did not match downloaded asset (Expected ad126e435cca94054bf0d616301799a105526cde, downloaded 2daeaa8b5f19f0bc209d976c02bd6acb51b00b0a)
at com.mojang.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:104) ~[launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:108) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
[12:22:21 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde for job 'Resources'... (try 3)
[12:22:21 WARN]: Couldn't download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
java.lang.RuntimeException: Hash did not match downloaded asset (Expected ad126e435cca94054bf0d616301799a105526cde, downloaded 2daeaa8b5f19f0bc209d976c02bd6acb51b00b0a)
at com.mojang.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:104) ~[launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:108) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
[12:22:21 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde for job 'Resources'... (try 4)
[12:22:21 WARN]: Couldn't download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
java.lang.RuntimeException: Hash did not match downloaded asset (Expected ad126e435cca94054bf0d616301799a105526cde, downloaded 2daeaa8b5f19f0bc209d976c02bd6acb51b00b0a)
at com.mojang.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:104) ~[launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:108) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
[12:22:21 INFO]: Attempting to download C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde for job 'Resources'... (try 5)
[12:22:21 WARN]: Couldn't download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
java.lang.RuntimeException: Hash did not match downloaded asset (Expected ad126e435cca94054bf0d616301799a105526cde, downloaded 2daeaa8b5f19f0bc209d976c02bd6acb51b00b0a)
at com.mojang.launcher.updater.download.assets.AssetDownloadable.download(AssetDownloadable.java:104) ~[launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:108) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
[12:22:21 ERROR]: Gave up trying to download http://resources.download.minecraft.net/ad/ad126e435cca94054bf0d616301799a105526cde for job 'Resources'
[12:22:21 INFO]: Job 'Resources' finished successfully (took 0:00:00.536)
[12:22:21 INFO]: Finished downloading C:\Users\heather26\AppData\Roaming\.minecraft\versions\1.6.4\1.6.4.jar for job 'Version & Libraries': Used own copy as it matched etag
[12:22:21 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:07.368)
[12:22:21 INFO]: Launching game
[12:22:21 INFO]: Unpacking natives to C:\Users\heather26\AppData\Roaming\.minecraft\versions\1.6.4\1.6.4-natives-315477218617124
[12:22:22 INFO]: Reconstructing virtual assets folder at C:\Users\heather26\AppData\Roaming\.minecraft\assets\virtual\legacy
[12:22:22 ERROR]: Couldn't unpack natives!
java.io.FileNotFoundException: Source 'C:\Users\heather26\AppData\Roaming\.minecraft\assets\objects\ad\ad126e435cca94054bf0d616301799a105526cde' does not exist
at org.apache.commons.io.FileUtils.copyFile(FileUtils.java:1074) ~[launcher.jar:?]
at net.minecraft.launcher.game.MinecraftGameRunner.reconstructAssets(MinecraftGameRunner.java:257) ~[launcher.jar:?]
at net.minecraft.launcher.game.MinecraftGameRunner.launchGame(MinecraftGameRunner.java:114) [launcher.jar:?]
at com.mojang.launcher.game.runner.AbstractGameRunner.onDownloadJobFinished(AbstractGameRunner.java:189) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.popAndDownload(DownloadJob.java:120) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob.access$000(DownloadJob.java:12) [launcher.jar:?]
at com.mojang.launcher.updater.download.DownloadJob$1.run(DownloadJob.java:89) [launcher.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_55]
at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]