Attempted to update from 6.50 to 6.50 (final).
I removed the old 6.50s with add/remove programs and rebooted aand installed the 6.50 final update but now after rebooting I no longer have the nvidia control panel(open gl, directx etc.) under settings. I tried reverting to the old 6.50s but the problem remains.

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athlon 900
ga-7zx
win98se
ibm 30gb
32mb creative gts 2
256mb pc133
sb live 1024
yamaha 8x8x24
pioneer 16x40