PR under Windows Vista

Hi,

I didn't find my problem in the list, so I'll give it out here.

When I join a game, my screen goes as usually black, with the background music on, but then pr quits itself and I'm back to desktop.

What do I do?

p.s. If you're experiencing the pr.exe and bf2.exe bug or whatever I just chose to run the pr.exe shortcut as administrator and that worked for me.

Windows Vista 32-bit
4gig RAM
8800GT 512mb
Intel quad-core