I also forgot to said /etc/X11/XF86Config
must change as STEEL1 said:
Driver "nv" (or Driver "vesa")
In the Module section, verify that you have :
remove the following lines, if they exist :
>When i tried to install the kernel development tools >it gave me an error "Package Not Found"....
>"Unlocatable package krb5-libs = 1.2.5-6" >"Required by krb5-devel"
When I updated my system, then install kernel development tools. I also got this error because on the RH8.0 CD cannot be found the the update module.
I found the updated krb5-devel on this site :
Hope this helps.