Quote Originally Posted by wowphreak View Post
Not enough info to go on really.

Maybe yer graphics setting got reset?

Maybe not enough memory?
Sorry, didn't mean to but it's so waird don't really know what's useful. Both machines haven't changed and they run 100% flawless arena and any instance. This only happens in BG. Maybe due to intense graphic moments. Both of these machines can and have ran in the past more than 5 wow clients with no problems.

Just wild guessing but it really feels like some Keyclone problem with Windows 7, Kavoom with keyclone...