Need graphic help bad!

[Boss]

I just upgraded my PC with new ram CPU and graphic card but am getting worst FPS then I was with the old one. I have tried many macros I found on the WoW forums but no no avail><
I'm running 5 on 1 4 toons on on screen and main on second. I'm getting 18-25 FPS on the 4 slaves(I can live with that) but the main is only getting 7-10><. I the slaves on a HD together and the main on the HD with the OS((just haven't moved him yet wanted to see what one loaded faster.)this is only thing I see it being but why now) Only other difference in them is the main is set to 1650X1050 res while I don't even know what the slaves res is off the top of my head. I have not changed anything else in-game just the hardware upgrades.

CPU AMD2 2.6g > 3.0g
GPU Nvidia 8600GT > Nvidia 9800GTX
Ram 2gb DDR2 800mhz > 4gb DDR2 800mhz

P.S. I just tried it with no add-ons other then SDtext or what ever to see FPS and that didn't change a thing either.
P.S.S Just that WoW client by its self is pulling 60FPS><

Also I'm using Hotkeynet.