I tried using the stock headers last night and installed the drivers from Debian....yikes !!!! Glad I backed up the xorg.conf file. Once I put everything into place and ran the module-assistant and rebooted and changed the xorg.conf file to use the nvidia drivers instead of the 'nv' drivers, my web pages went South and all text was so scrambled and small --- It looked terrible. The text looked relatively good before I put the new drivers in but I thought it would improve it a little and make it sharper if I installed the nvidia drivers. That was not the case.
I think this little piece in the Debian Way is what caused the problem for me with the free debian drivers.
[B]"The 71xx version is the only one to support RIVA TNT, RIVA TNT2/TNT2 Pro, RIVA TNT2 Ultra, Vanta/Vanta LT, RIVA TNT2 Model 64/Model 64 Pro, Aladdin TNT2, GeForce 256, GeForce DDR, Quadro, GeForce2 GTS/GeForce2 Pro, GeForce2 Ti, GeForce2 Ultra and Quadro2 Pro. The current version - which is ulterior to the latest version available in Etch - does not support GeForce2 and GeForce4 card."
Being that my card is a GeForce 4...it sounds like its not supported with those drivers.
I will give the proprietary drivers a go this weekend and let everyone know how that works.