No input found error after update gfx card driver.

Hello,
(no input found error after update gfx card driver),Well i did disable or unistall the 3d card driver through device manager, then PC works fine but i hv to instal card driver afc so when i do that its pop up (no input found) bfr the window desktop while on blck screen.
& btw i hv read so many threads but ever1 seems fails & here is good news if u guys thinking my GFX is corrupt unfortunately it works in XP fine & perfect but i want Win7. guys please help.