I tried to run a small windows game in WINE today, but I got 1-2 frames per second. It was a 2D game, so there was no reason for the lag. It worked just fine before upgrading to 12.04. Also, Java doesn't work!! Minecraft and other java programs don't work. They don't even open a window.
closed as off topic by jrg♦ May 21 '12 at 20:31
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You have to install OpenJDK to make Java work: https://help.ubuntu.com/community/Java . To make Minecraft work you need to set minecraft.jar to executable in Properties > Permissions and set the default program to OpenJDK (instead of Archive Manager).
For Wine, go to http://appdb.winehq.org and see if the app is compatible with the newest version of wine.
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