When we try to update from 1.4.7 to 1.5 we get the message: "Failed to launch. Fatal error occurred (4): /Users/Mats/Library/Application Support/minecraft/bin/minecraft.jar Unable to render embedded object: File (This update works on the account of the Administrator, because here this address (/Users/Administrator/Library) exists, but it DOESN'T EXIST on the accounts of the users) not found.!! So the update failes on the account of my son. We really tried everything like checking last update Java, checking preferences of the browser, enable Java, disable AdBlock, enable cookies always , check Firewall/Security/incoming Networkaccess; enable Minecraft.net, ... Could you help us please? Thank you