ATTENTION ALL DUAL(or more) GPU USERS!!
I have just found a way that you can run a client on different gpus without the need of a VGA dummie or multiple displays in windows Vista.
1.Open up the folder in which you FAH folders are.
2.Run your first gpu client.
3.To run your second gpu client(or more)first single click the executable so it is highlighted.
4.Now unplug your VGA cable from your main card and plug it into the second card and wait for a display to show up(you wont see your icons)
5.Now hit the enter key on your keyboard once and wait 10 seconds.
6.Plug the VGA cable back into its origional video card.
You should now have your second FAH gpu client running. You can repeat this process to enable more gpu clients(assuming you have more than 2 gpus)without multiple monitors or a vga dummie.
All these steps assume your FAH clients are setup for multiple gpu use.