Quote Originally Posted by 'Fizzler',index.php?page=Thread&postID=116573#post 116573
When you invite someone does it just lock up entirely?
No, it's just something pegs the processor so hard that I get less than 1fps and everything takes several seconds to register. Even the mouse lags behind. I can close any combination of WoW instances and have the same problem as long as I leave one open. As soon as I close that last wow instance the system goes back to normal.