When playing wow.. screen goes black


Oct 12, 2011
so my old graphics card crash and i bought a new one(nvidia geforce 210) and well my screen would be good at some area but in major cities i would crash.. make my screen go black but yet everything in the background would be good... i know it has to do something with the game because it only happens when i play that game and that game will freeze.. some of the game screen would turn pinkish and then screen would turn black.... i dont know what to do.. and please can you help me.

ohh and the temp of the game card stays at 45-49 and i got a pcie x16 1.1 but the video card is a 2.0 i was told that is ok to use on my computer still.