I have found 3 bugs:
1: when starting WoW without entering username nor password and the exit WoW often hang (the music is stil running)
2: When watching the 2 intros to WoW and TBC I can only se half of the screen (the rest is black)
3: sometime when starting WoW I dont get any sound at all (maybe it is a driver issure since I have a bad soundcard)