I've been experiencing this issue on and off for some time now.  It's not really a game-breaking issue, but can be a bit annoying nonetheless.  At random times during my gaming sessions, I sometimes see textures 'bug out' on on random objects.  The screens below illustrate some of these glitches:

Pic 1    Pic 2    Pic 3

Now I know the first course of action aside from a Full File scan (which I did), is a driver update.  However, for some odd reason my computer doesn't like me updating drivers as everytime I do it fails to recognize my video card again (I have and nVidia 7900GS).  It sees a VGA compatible device but despite attempted driver installations, it doesn't see it as the 7900 and thus the drivers don't quite work.  Only way for me to get it working again is to do a system restore back to my old settings (where I have the 175.16 driver set installed).  Having said all that, I was wondering if there might be any opinions on how I could rectify the texture glitch issues given my situation.  Here's my DxDiag:

Clicky

Thanks in advance!  

That looks like RAM on your video card going bad.

Thanks for the reply Rare, and I think you might be correct on that one.

After doing some research and running some diagnostics I came up with errors during the video memory tests (Error Code: 5300:0119).  According to what I found on similar topics, it can be an issue of the card/heat issue that causes it (among other things).  Stinks because my current case (yay for Dell) doesn't have a lot of airflow options aside from a hacksaw job.  Oh well, guess I'll pick me up a 9800GT and see how long that bugger lasts.