Game Crashes

Whenever I click "PLAY" and the game loads, it starts the game and I see "MOJANG". The game crashes immediately after that. I don't know why... I have uninstalled Minecraft and Java and re-installed both and I have read the crash report and tried to make sense of it. I don't understand what is going on. This happens for anything 1.7.3 and up including all SnapShot versions.

Thanks