I am using NVidia drivers 93.71. When I first installed them, the new control panel showed 3 "Application Modules" - Display; Video and TV; and 3D Settings. The latter was most useful as it allowed me to change the performance settings for individual programmes.
I have just had to re-install XP - with no change in hardware - yet when I install the 93.71 drivers I have lost the "3D settings" module and only see the other two.
I have tried all possible options in the control panel set up with no change so very grateful for any help on where to look next!