I'm noticing while gaming in Vista that the new mbp definitely has thermal issues when closed. While playing fallout 3 and guild wars I'm monitoring the temps in rivatuner and they will slowly inch upwards towards 90C at which point the notebook will auto shut down. If you open the notebook however, the fans are able to decrease the temps and keep them properly managed. It only appears to be a problem after gaming for awhile with the laptop actually closed. Anybody else noticing this? It makes sense if you look at the fins on the back which are much more open with the lid raised.