Sorry for the late reply, I have been very busy with school the last week.
Alright, so installing the latest chipset drivers didn't help, I still can't play videos.
But one thing disturbed me: while I was testing video playback, a BSOD popped up with an error about nv4_disp.dll
After googling nv4_disp.dll I found out that this problem is pretty common.
I tried everything, driver rollback, complete driver cleaning (driver cleaner pro).
Also, I get sloppy performance on some games, like Dark Messiah and Guild Wars, whereas it worked very good before. I'm very frustrated, please help me out.
Edited by BuD^, 26 November 2006 - 07:39 AM.