I thought I would bring back this discussion concerning my NVIDIA graphics card. I discovered that the reason certain drivers wouldn't load was because my hard drive was corrupted. I was recently watching a newly bought DVD on my PC and then the sound would all of a sudden cut out and the movie would drop frame rates. I should have taken a hint right there and started backing up everything, but I instead uninstalled and reinstalled my DVD Ultra 13. That didn't help. Two days ago as I booted up my Windows 8 PC, it went into diagnostic mode and then eventually a repair loop. Of course the repair loop didn't work, forcing me to completely reformat my hard drive. I am now busy replacing my software that will take awhile. I lost some very important files, and to make matters worse, my external hard drive would no longer work in its case. Last night, I removed the external hard drive from its casing. It turned to be IDE vs. SATA. Fortunately, my motherboard does have an IDE port, which is being used by my old Zip drive. I hooked up the external drive and was able to retrieve a lot of my pictures and really old files that I didn't want to lose. All is not lost, but to make a long story short, when any graphics card whether it's NVIDIA or ATI, refuses to accept new drivers, figure on the fact that your hard drive is corrupted, start backing up, and then reformat the hard drive and start over. According to Zone Alarm, I didn't have any viruses, but I sure had one corrupted hard drive.