well I was playing WOW on my 12.04 box and wine worked good for some reason when i right clicked the World of Warcraft Launcher.exe to use wine it would crash as well but if i right clicked it and clicked open with and then clicked rundll32 it would run the patcher/loader no problem but as a rule i normaly just right click the Wow.exe and open it with wine with no problems.
But I do have a problem with my computer shutting down when i am playing I think due to over heating possible as i am using an old acer aspire 7736z the only.
Ow btw you may have to modify the SET gxApi in your WTF.conf file in the WTF folder on the 6th line it calls for DX and i had to change mine to SET gxApi "OpenGL" to get it to run but then again like i said I am using an old POS computer you may be fine.
Joe