For some reason I can't uninstall, either from the Change/Remove Programs list or from the EA Games files on the Start menu. Can I manually remove the files? Also, could the problem be caused by overheating? I know that can cause it. If so, how can I fix this?
there is a program (free program) called ccleaner that you can use to uninstall the games. You can also use it to clean out any registry entried they left behind before you re-install. Do a search on yahoo or google for it

I dont know if over heating would cause that specific problem. When my PC used to overheat, it would lock the entire system up, not just one program. But I'm no expert in that area. Hope this helps a bit!