Quote Originally Posted by cerruption
It definately seems true on my machine. Before I started dual boxing, once in a while I would accidently open a 2nd instance of WoW -- big graphics freeze up, and stopping WoW wouldn't even fix it, I had to reboot. Its been working perfectly with the 2 folders.

Well I already copied them anyway, and made my shortcuts, so I'll just keep them for now

Maybe 1 day I'll try launching from the same folder.
I've ran 3-5 instances from the same install on two completely different hardware configurations no problems at all.