Hi guys, long time reader. Received a new 15" 2.2/6750M MBP last week and have been having some issues with the machine locking up under load. For example if I boot up a VM using Fusion the temperature will spike up above 90 degrees and the machine will lock up most of the time. The machine appears locked (cannot move the mouse at all and keyboard is unresponsive). I can SSH into the machine still and it still is running however. This is one example but it will freeze under a number of circumstances where the CPU/GPU load is very high (rendering, DJ Software, compiling so far in my travels). The following post on the Apple support forums seems to be able to reproduce a freeze on all 2011 MBP's with discreet graphics chipsets: http://discussions.apple.com/message.jspa?messageID=13219904#13219904 Several people in that support thread have reported that they have returned their MBP with these issues only to receive a new one that also freezes in the same manner. I am reluctant to return this one if I am going to just get another one with the same issue, as I suspect this may be a flaw in all of them that is caused by a driver / firmware issue. This issue has been reported on a number of other forums that I have seen and I was wondering if anybody here with a new MBP has experienced similar issues.