Can't seem to run my machines headless with the above drivers, two different machines and the same results with various settings in afterburner.  All are using a combo of 7950's (gigabyte, sapphire and xfx).

I'm using TeamViewer as my means to connect to the machines...  With no monitor connection can't get any video to display that isn't all blocky and distorted. 

This is not a cry for help, just a warning for anyone wanting to try. I guess I'll have to get some dummy plugs at some point and give that a try.