Hey everyone!

Not sure if this is the right section but I'm taking a chance.
I just started quad-boxing 4 shamans tonight after seeing it being done in AV and thengot the link here from that guy.
The idea of it is something I've been wanting to do since way back in the day when I played Anarchy Online and in FFXI I actually tried doing it by using a certain software made for that game which created hooks and classes to use for programming smaller things for it (people mainly did botting but I never were into cheating, I always just wanted to control more characters), but never got anywhere since I'm no programmer by heart and because everyone who had the talent thought my idea sucked.
At this point in time as far as I knew software solutions for multi-boxing didn't exist, but I heard of people later in DaoC who did it using several computers etc and that was never an option for me.
Well, enough with the prologue, now it does exist and I'm in love! :love:

I first set everything up for three new accounts because the store had some trouble with the fourth one so it took an hour extra or so before I got it (buying keys online) and without actually thinking about it I had three instances of WoW running with all details etc on the highest level... and it worked, smoothly aswell!
But then when I got the fourth instance the fps dropped immensely and I really feel the lag, especially when I went to Orgrimmar just a few minutes ago, it felt like I was back on my old station where everything would freeze for a second or so time and time again.
So I went out and pressed ctrl+alt+del to check my CPU usage and found out it was only using 50%, so that clearly wasn't the problem.
Now I don't know how to check GPU usage, but the memory was at about 95% or more, using 1.8GB of 2GB.
Is it fair to just assume memory is the problem here and that another 1GB stick will solve it?
I don't know if memory has effect on fps? Always kind of thought that was GPU and nothing else.
I lowered the resolution on my slaves and set all graphic options to low except for terrain distance and it basically had no effect at all, I mean I think I noticed a sliiiiiiiight improvement but it was so slight that who really knows...
So that really got me convinced it's the memory, but I don't want to spend money before I've heard some more opinions on the matter, especially if someone knowledgable has input to offer, because I'm a poor student and just running these four accounts forces me to sacrifice some things each month.

I'm running a QuadCore 6600, 8800 GTX nVidia and 2GB DDR2 memory.
My main character is set on 1680x1050 resolution and everything on high while my slaves run everything on low and 1280x720 resolution.

Long post, but I cincerely thank anyone who takes the time to read and respond!