Check your monitor video cable (no extension cables / no KVM switchbox).

Check your monitor INF files (make sure Windows calls your monitor by name, in your Device manager)

Doanload a different Detonator / Forceware (nVidia) driver. Reinstall DX9.0b

Make sure you don't have any onboard video enabled.

"Karl" wrote in message ...
All of a sudden my windows xp with an Asus MB Pap800 deluxe and a Asus V9520/TD GeForce FX5200 comes up with 4 bits and cannot be changed.

I never had such ything in many years of computing.

What can I do?