Here is where it is. I have Suse pro 9.0, I have downgraded the kernel and source code to 2.4.20-62 to allow the use of audio and ACPI on my toshiba 5205-S703. I then compiled the Nvidia driver, and that all went well.

Everything was working good (except the wireless and eth0 battling for DHCP control).
I recently did a patch upgrade to the KDE, a wireless update and some X11 items. Not the kernel updates.

After that KDE would start with a standard driver, "nv" even though XF86config listed "nvidia" as the driver. This gave me no 3d and I could not log back into an x environment more than once per system boot, the screen would get tweaked and I would have to ctrl-alt-backspace to get out.

I have tried to recompile the Nvidia driver but I get the error "Nvidia.0" module cannot load becuase it was compiled with a different kernel.

I used the IGNORE_CC_MISMATCH=yes to get it to work the first time, but it doesn't work this time.

I have tried reloading the kernel source and it tells me that it is already installed.

Help on this please, I feel like every time I try an update I screw myself.

How many kernel sources do you have installed right now?

ls -l /usr/src