No Input found after updating the 3d card drivers

i hv tried almost everything,my cards works fine in xp but in win7.Well at start i get that black screen
error then i somehow cross that step but then i stuck in this this masage popup right befre the window
deskop on black scree in red (No Input found) perhaps when i disable or uninstal 3d card driver through
device manager then i works fine but i need to instal GFX anyway & i want Win7. Guys help me i am so
frustrated now