Help: GPU Computing SDK Crashes!

Hello,

I’m sorry if this is not the best place for my doubt… I’ve installed gpu computing sdk (2.3 or even with 3.0) and for the first times it worked flawlessly, but now its SDK Browser just crashes when I try to start it. Windows (7 x86_64) just says it stopped working and nothing else. Reinstallation does nothing… anyone had experienced the same problem?

Thanks