NVIDIA driver and new RH9 kernel via up2date

[JsPr]

Hi,
I recently upgraded my kernel via up2date and had to compile a new NVIDIA driver per instruction in the NVIDIA help file. It looked like the compilation went well. The problem is that I can't get X to start. The only thing I get is a blank screen. Nothing else has changed other than the kernel and all XFree config files are the same. Have any of you had a similar problem?
I would like to upgrade the kernel because it's Athlon specific and I don't believe my current one are... But I might be wrong on that..

[BluTARius]

You will have to change the XF86Config file from nv to nvidia again after the update.

[JsPr]

I checked XF86Config and the driver is nvidia. I tried to start X but only got the same blank screen. It is impossible to kill X with ctrl-alt-backspace. I have to reboot the box. :-(

[mdwatts]

Since you have reinstalled the nvidia driver which should now be located in the new modules directory (/lib/modules/<kernel version) for the new kernel, try running

depmod -ae

as root.

See if you can manually load the nvidia module.

modprobe nvidia

[JsPr]

Found it.
The XFree log said that the driver couldn't initialize AGP. The kernel AGP module didn't load so I put:
Option "NvAgp" "1"
in XF86Config that tells the nvidia driver to use the nvidia AGP driver.
Now it works just fine!
Thanks for your hints.