Well, I had the same question as you a couple of months ago. I tried some stuff, but I'm afraid the result was disappointing. No modification was possible, since Unwinder hasn't released a patch script for newer mobility ATI cards (PCIE). Also, it seems that Unwinder is going to be freezing the whole Rivatuner project soon and discontinue the release of patch scripts, from what I understand after reading one of his posts quite recently. You can read about my investigations on the mobility X600 on this thread: http://forums.guru3d.com/showthread...age=10&highlight=mobility+firegl&pagenumber=3 Maybe you get lucky trying sth else... If you do, I'd like to hear about it... Take care