Well, about performance problems. I ran two copies on PTR.
I don't have 2 accounts yet, but I can test on my bro's account as well as my own.

I can open WoW, but it opens in two seperate windows (Note: I wanted them to be two half size full screens run as split screen), the windows aren't the size I want them anyway. With the .bat file, nothing happens, other than a small windows appears for less than a second and then nothing.

Edit: Forgot to add, that I don't crash at all. It's nothing like that, I just want the 2 copies to be full screen and run like the tri-box example in http://www.dual-boxing.com/forums2/v...er=asc&start=0
Only difference is instead of one copy taking half of the screen and two copies taking two quarters. I want two copies to take each half of the screen. If you know what I mean? Like playing split screen in say... Halo.

Edit2: If I really get different results like this than on PTR. I can look for
another gig of RAM. I'm just a bit reluctant as I'm a bit poor at the moment and I'm on a Socket S939 which means good old DDR memory,
but I guess I just gotta do what I gotta do to make it run properly.