Hi mtrr, and others,
I have the NVidia drivers working well
now. The key was to upgrade to Slackware
8, and go for the latest X, as mtrr suggested.
I suspect the minimum software list is not
quite right. I was even able to get NVdriver
suspending, by hacking the kernel driver as
suggested by http://www.hitnet.rwth-aachen.de/~thomasd/DellInst/
It disables the AGP interface, but it still seems
fast enough to me.