nVidia driver updates & Opengl

After updating the drivers for my Herc 3D Prophet II 64 MX to ver .1240 none of my Opengl apps worked. I noticed that the display properties box did not have an Opengl tab as did the ver .0635. I’d like to keep the drivers updated of course but not at the expense of my Opengl applications. Did I do something wrong or is an Opengl tab missing in current versions? I reinstalled the .0635 drivers that came with the card and the tab was back but I can’t get it to appear with the updates whether nVidia reference or Hercules. Any hints? Your help is appreciated. Thank you.

You have to remove some nv* file if I remember right. Search the advanced developer forum here for an exact answer.