7900GTX overlay corruption problem

Modelworks

Lifer
Feb 22, 2007
16,240
7
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I replaced the video card in one of my pc with a evga 7900gtx 512mb card , old card was a leadtek 7600GT 256mb.

The problem is the system will not play videos back in overlay mode.
If I use any player in overlay mode the screen will flash completely black , play the video for about 5 sec, flash black again, then play for 5 secs and repeat until the video is stopped.

I've reinstalled windows xp twice using the nivdia 162.18 drivers and the beta 163 drivers.
Neither solve the problem.

The only solution I have found is to use vlc in opengl output mode and that plays fine.
But my other apps, like a tv tuner card cannot work in that mode, only overlay.

The card works flawlessly in every 3d game and application I use it on.
world in conflict, medal of honor: airborne demo, bioshock
Opengl works fine in 3dsmax, bodypaint, mudbox.

really can't see whats causing this.
Help appreciated !