Have you had any cracktivators installed or loader?? Use the slicdump tool to see what it says. It is last ditch T/S, and not really a tool I usually recommend. It may give some clues though..
Did you try using AFlash 2 ? Search these forums for it some people have had success using it on ASUS Notebooks.
I did prier but i did a new install, but it was not from a CD rather it was from windows as a new installation. Deleted the Old Windows folder too. Would that be a reason?