I just found this:
"Another drawback of the new GeForce 7950 GX2 is not a significant one but may cause nasty problems to some users. I am talking about multi-monitor configurations support. Since Nvidia SLI technology (like ATI CrossFire) supports only one display in case both GPUs are involved, the owners of multi-monitor configurations will have to switch from multi-GPU mode to multi-monitor mode every time they finish playing games and vice versa. Of course, if you often switch between games and any other work that requires multi-monitor support, this may become a very annoying issue for you."
So that would seem to explain my issue...... except that I am using a 2nd video card to run my 2nd monitor. I was hoping this would allow me to use dual gpu for my main monitor and whatever game and the 2nd vidcard to power my 2nd monitor. Any ideas?