My Dell tower is 2+ yrs old. It was a good setup at the time, upgraded processer, memory, latest GeForce 8600 video card, etc. Had no probs with it, even running Vista. My video card started going bad so I dropped it off at the repair shop also for a 1tb hard drive. I do a lot of digital photography. 4 weeks later they say the computer won't accept any add on video cards. They tried 4 confirmed good ones, the screen goes blue and freezes. They can't figure it out. But the standard built in video card still works. Any ideas? Is this going to slow down my dig photography? What about dig video? I don't game at all.