I've got a Gforce 4:
Model: GeForce4 MX 440
Video BIOS: 04.17.00.45.00
Card Type: AGP
I use NVagp and not agpgart.
I use Vesa frame buffer.
With drivers <= 4363, framebuffer works.
With drivers > 4363, framebuffer works but after X is started, if i go to console, i've got strange char on screen...
So i always use 4363 drivers version
I have tested with drivers > 4363 and GeForce FX 5200 and it works, same with a TNT2.
I know two people who have a Geforce 4 and they have the same problem :-/