Rebmik, your comment isn't helping anyone who wants to work with Alienware to resolve this issue. I know you've been mucked around, but you've cut your ties now so let the people who want this resolved have the "air time" so to speak.
Thanks Steve for letting us know where we stand and making contact.
Chaz on these boards is reviewing a demo unit, and has found he can replicate the problem using a program called "ATI Tool" to monitor and stress the GPU. It is repeatable and easily replicated. The same problem occurs after a few hours of a game such as Crysis too.
http://forum.notebookreview.com/show...38#post3086838
It is the feeling with some that the cause is due to the GPU fan not increasing it's RPM in relation to the increasing temperatures although this has not been verified.