This seems to be my problem.
I've tried so many things that I am now reinstalling to start off with a clean slate.
My DVD installer comes with kernel 2.6.11 and if you update it goes to 2.6.13..??
There are various things on the list about who has dropped back to what kernel with what driver etc..
so I am guessing I have to find the right combo.
There was a very eye opening thread about the Nvidia drivers and about them not being open source and all that.
..
As far as the open source nv driver goes it just doesn't pick up the 3d
goodness which I need to run various intensive production tools.
After my fresh install I am going to try going straight into
yum install kernel-devel
Hopefully that will give me the correct source.
Then download the nvidia driver and bang that in.
I'm up with shutting down X to get the driver in there.
The problem with the Yum stuff as I get the error.
Error: Missing Dependency: nvidia-glx = 0:1.0.7174 is needed by package kernel-module-nvidia-2.6.11-1.1369_FC4
Error: Missing Dependency: /boot/vmlinuz-2.6.12-1.1398_FC4 is needed by package kernel-module-nvidia-2.6.12-1.1398_FC4
You can see that the kernels don't match..
Well here goes ....again