Two words:
nvoglv32.dll
175.19

Well, OK, they're not words... The first is the OpenGL file the video card uses, the second is probably the driver set you're using, from Nvidia. It's the latest one.

The good news is, the dll and the driver version are the most stable and best yet - for all games and all apps I've tried them with. I have the same video card as you do, and am running Vista Ultimate 64 bit, and I just recently "upgraded" to Poser Pro.

The bad news is, it seems to be only Poser which has a problem with it. If you've been using Poser for any amount of time, you'll know that Poser is always thje exception to everything. ;-)

On Nvidia's site there's a link somewhere for older driver sets - if you play games, you might not want to try downgrading your drivers, though.

Also, in the Nvidia Control Panel, make sure "Let the 3D app decide" is selected for OGL options. You could also go into the advanced aoptions and set rules for individual apps. I haven't tried it yet because frankly I'm disgusted with Poser at the moment, but that comes and goes. ;-)

OpenGL is outdated and ill-maintained and slow, plus requires too much CPU power, and too little GPU power. I'm hoping the next major release of Poser uses DirectDraw (otherwise known as DirectX), but I'm not gonna hold my breath...