thanks for the advice - I've now installed the NVIDIA kernel using the src RPM. What happens now is that when I start Redhat I see the NVIDIA logo flicker on and off continuously, for at least five minutes. Being a linux newbie, I'm unable to stop this happening except using CTRL-ALT-DEL. This means I can't get into my OS to examine the XFree log - any suggestions.
Can I boot into redhat without kicking off the Xserver?