OK I've narrowed things down a little bit.
If the shimian is connected to the computer on boot, whether off or with no power to it whatsoever, my computer doesn't make it to windows (not sure where it stops)
If I have another monitor connected to the other DVI port and boot up with the shimian connected, I boot into 800X600 on my other monitor with a blank shimian looking for signal. My OS doesn't see the monitor when this happens.
If I boot my computer with no shimian attached, it boots fine and if I connect it, I get the system sound that I attached new hardware. I can see the monitor in my display options (even shows the name!), but by default the monitor is not displaying anything and if I choose "extend desktop to this monitor" I get the generic error "unable to save display". Same thing on my roommates 6950 2gb on the correct port, which I believe is the same model card as mine.
Leading me to believe that this card is possibly incompatible. I'll be trying it on an nvidia 560ti later so we'll see. If it is incompatible, no biggie. I don't have a big problem with getting a new vid card and selling my current one. I use 3 monitors, two at 1920*1080 and want to use the shimian. I don't care about 3 screen gaming at all, just need it for working. I only have one pci-e port so I need to be able to do it all from one card and it looks like a 560ti doesn't have 3x ports. Any recommendations on cards that would work in my situation?