Well, maybe not. I suspect it is, though.
Nvidia GeForce 9600 GT, Windows 7 Premium, 4 gigs of RAM, 3 year old PC. RAM and VRAM checks out, processor is nice and cool, fans all running properly.
While playing FFXI, I'll get a random chokeup for a few seconds at a time, about every 10-15 seconds. I thought I had fixed the issue last week when I physically dusted out the interior of my case and reseated the card, but it started up again.
Did Microsoft or Nvidia muck around with the drivers in the last week or two?