hardware acceleration

After having reinstalled nVidia drivers twice,
after having replaced all GL files with newer ones,
after having recompiled my code with VC6 and VC.NET,
I still can’t have hardware acceleration.
Does anyone know why I always have this :

gl_acceleration :
gl_vendor :
	Microsoft Corporation
gl_renderer :
	GDI Generic
gl_version :
gl_extensions :

instead of my usual configuration ? I’ve a
GeForce 2 GTS and had no problem until I reinstall WinXP (which crashed every 5 minutes ).

Hi !

The usual reason is that you try to get a rendering context that has some option requested that isn’t supported by your hardware.


Which NVIDIA drivers from where?
What do you mean with replacing GL files?
WXP has some functionality to automatically repair system files. Maybe your XP installation has a different opinion on what drivers it likes.
Did you use Add/Remove Programs in the control panel to deinstall previous drivers?
Did you use the setup.exe of the driver package?

Thanks for replies
In fact all options and extensions used are supported, and driver are last Detonator version.
I solved the problem by myself but can’t understand what the problem was ! I just changed a parameter (actually I made the vertical sync disabled by default) and everything worked well !!

I just put this reply if someone else has same problem.
Thanks again.