Starcraft II launched on Tuesday and everything went relatively smoothly for Blizzard in the first few days. However, reports are now filtering in that the game is causing some GPUs to melt.
Blizzard have some become aware of the problem and have offered a quick fix on their support site.
Certain screens make your hardware work pretty hard
Screens that are light on detail may make your system overheat if cooling is overall insufficient. This is because the game has nothing to do so it is primarily just working on drawing the screen very quickly. A temporary workaround is to go to your Documents\StarCraft II Beta\variables.txt file and add these lines:
You may replace these numbers if you want to.
This doesn't really help those who have already suffered though and as yet, Blizzard hasn't announced any plans to compensate those who have fallen foul to this.