Thanks for the help, however I can't even get in to the OOPS! screen now. Getting bad files messages during the boot-up message scroll. then it just wants to reboot. So...must have borked the files somehow too ! Sounds like more got corrupted than simply xorg.conf. I would boot up a live DVD and lo...

I had the exact same problem recently.
Do Ctrl-Alt-F2 at the oops screen. Login as root and there type then reboot.