WHY doesn't Microsoft respond to the many many Video card failures brough about with the 64 bit system upgrade?

I feel your pain. I updated vista on my laptop and I lost my audio capability. When I download any audio drivers, they won't install because I "do not have an audio device." Basically, I just restored my system back to factory settings and updated to a point I felt wouldn't cause this problem. Although my problem is different from yours, I feel if you restore your system to an older restore point or reinstall windows and do not install this year's updates, you'll fix the problem just like I did.