I recently upgraded the kernel to 2.4.20-18.9 and had to reinstall the nv drivers.
This caused problems because the "make clean" in the nforce directory didn't work. I assumed it didn't matter - wrong.
The "make install" crashed with unresolved dependencies.
I had to do a "make clean" in each of the subfolders nvnet and nvaudio. Which then resolved the problem.
Thought I would post it here for any other newbies suffering the same way.
Another good thing - RH seem to have addressed the IDE speed problem in the new kernel. Around 50% improvement I think.