BSoD help, only when i play WoW.

Hey all, i have the problem of getting a blue screen when I play World of Warcraft. Only WoW. I play a lot of heavy 3d intensive games, Company of Heroes, Fifa 07 etc, so i dont know what is going on. I just reinstalled it yesterday and now i get the blue screens. The main stop error seems to be:

Error code 100000d1, parameter1 ffffffeb, parameter2 00000009, parameter3 00000000, parameter4 ffffffeb.

but i also have gotten

Error code 1000007f, parameter1 00000008, parameter2 80042000, parameter3 00000000, parameter4 00000000.

I have attached the minidumps from yesterday, thanks for your help.