I had this same problem and was able to "bandaid" the issue a bit it would seem. I have always run WoW in windowed mode. I just liked the convenience of being able to see what is still going on outside of the game. The computer was randomly locking up on me 2-3 times a day. VERY irritating. I am...
I have been having this same problem on the RTM and earlier releases :( What kind of a video card are you running by chance? I have a ATI 4870 and am seeing a lot of other people with ATI cards having this same problem.