.
Its a US International QWERTY keyboard. The keyboard is detected when
the system boots up and also works perfectly in single user mode (run
level 1). However in run level 3 none of the keys respond.
Do a rpm -qa kbd to check your keyboard driver. On fedora core it is kbd.1.12-10.rpm. I know there are updates for this file. I have installed FC 6 + GUI (though I prefer only console) on Vmware to test my keyboard problem and it seems to be ok.
the command to load default keyboard map is loadkeys -d
I had not
checked xorg.conf because X is not running at all.
Have U installed Xfree? or U installed only shell and no GUI? the file xorg.conf is found in /etc/X11/xorg.conf. Have a quick look at the input section. You should find something concerning keyboard.
Rgds
