Recent Nvidia drivers causing catastrophic failures
If you're using an Nvidia graphics card you should check your drivers, as there is a chance the newest drivers could cause your card to overheat during World of Warcraft, the Starcraft II Beta, or even Warcraft III. Blizzplanet reports the issue complete with links to two threads on the Nvidia forums discussing the issue, including one that states that Nvidia will be updating the driver in the near future.
Please check your drivers to make sure you're not using the versions that cause this problem and roll back if you can.
Windows XP: http://www.nvidia.com/object/winxp_196.21_whql.html
Windows XP 64-bit: http://www.nvidia.com/object/winxp64_196.21_whql.html
Windows Vista/7 32-bit: http://www.nvidia.com/object/win7_winvista_32bit_196.21_whql.html
Windows Vista/7 64-bit: http://www.nvidia.com/object/win7_winvista_64bit_196.21_whql.html
More information can be found on threads such as these:
http://forums.nvidia.com/index.php?showtopic=161525
http://forums.nvidia.com/index.php?showtopic=161503
