|Sorry for confusion, I played WOW for three years, but not always on this machine.|
Its a DELL Inspiron one 2310, quad i3, 4 meg mem, nvidea GT 525m.
Been playing a lot today, still has not crashed. I am now pretty sure that the problem is with the nvidea graphics card overheating.
Incidentally, I put a ticket in to WOW, not really helpful answer, they just said that they know that WOW causes video cards to overheat.
Will post again later when I have more info.