My OpenGL problem is a little bit different from what has been posted so far:
OpenGL usually used to work fine. Not any more. I think it has to do with the Nvidia driver installation. Here is the interesting effect:
When I install the correct Nvidia drivers, OpenGL 1.4 works fine again as long as I do NOT reboot the computer. After reboot (which is not required by the driver setup) no OpenGL suppert can be found, eg. PC Wizard crashes while examining the OpenGL extensions.
Which distubing things can Windows XP do after the reboot?
Help is highly appreciated for I’m dealing with this problem for weeks now.