I was having system instability with Vista/new XPS 410/GS 7900, was getting crashes when playing video and opening programs, SO i installed the latest BIOS just the other day, and installed the latest driver from nvidia ( not the old one from Dell), and i can play games and watch videos fine. havent had a crash yet either. I would r try updating your BIOS and then reinstalling the latest driver for the 7900GS and remember to turn the antivirus off when you do it, and see how it goes from there.

Hi!

    thanks for your reply. I've already the latest BIOS version. For the drivers, I've already installed various drivers version following the correct procedure... Which driver version have you installed? Some other info I've just discovered: I can play some files (DVD, divx xvid) but if I try to play, for example, the videos inside the folder user/video/ WMP11 "cannot access the file". Also inside Mediacenter I have no video... As always if I reinstall dell drivers I see all videos...

 

Please help me!

(and sorry for my bad english...)

i went to the nvidia web site an dgot the 100.65 release, it is east to find there..... it installed properly after the BIOS update.