Quote Originally Posted by Heenan',index.php?page=Thread&postID=187951#post18 7951]Does this happen only when you have 2 or more instances of WoW open? In other words, only open 1 WoW window and see if you get the tearing/popping.

If that happens it's most likely your config.wtf file. Deleting it and letting the game recreate it has fixed many people's problems.

[url='http://dual-boxing.com/forums/index.php?page=Thread&threadID=17161
Video artifacts running 2 copies of WoW[/url]
Yeah, it only happens when two instances are up. I just tried deleting the config file, but it didn't work.

Also, here's some new information: if one of the windows is in windowed mode, and the other is not, I don't get the artifacts. However this is far from ideal for obvious reasons, at least while leveling.