Quote Originally Posted by 'Lorune',index.php?page=Thread&postID=111229#post1 11229
dont run full screen.

Set the instances of wow to windowed and tick the maximized
Also turn down all graphics options in your wow game and see if that will make a difference. If you have all of the graphics set at defaults, you may be stressing your video card with two copies running. I found that if I turned down all graphics options, I could run 4 copies of the game on my desktop computer without any /follow or video lag issues.