So, i bought Minecraft today ans started playing it.
The bug makes it REALLY hard for me to craft anything. So when i try to pick up and drag an item in my inventory i can't just normally click once and the item will "stick" to the mouse so to speak and click again to release the item, but i have to hold the mouse button for it to grab the item and it looks really glitched out http://prntscr.com/11huj4 The number that shows the stack size gets buggy. and as i hover a stack of items that I'm holding over an empty grid space it randomly places one of the item into that grid. And none of the crafting techniques work, for example right clicking doesn't place one item of a stack into a grid, And none of the new crafting techniques introduced in the Redstone Update work. And if i for example place 10 sticks and 10 coal in the crafting grid, i can't rapidly click the torch to receive 40 torches but i have to take 4 at a time and place it into my inventory. I tried restarting my computer and reinstalling Minecraft but the bug still happens the bug takes place even in the demo you can play in the browser. This bug makes playing Minecraft really hard and frustrating. I've tried every method i could think of, please help!

EDIT: Some more information: My sister has the exact same computer as me and she bought Minecraft too and the crafting works fine. We both bought our computer around 5 months ago and we might have installed different programs during this time. And here's some info about my computer http://prntscr.com/11hyfq Thank you for reading.