Using an ATI firepro 4800 card, with three monitors connected (1 dvi, 2 displayport) on Server 2008 R2 worked fine.
Ive now moved to a new machine, although identical spec, with a fresh Server 2012 install, and cannot get a three display output - only two.
When I try to extend the display on to the third monitor, I get the message "The display settings could not be saved. Please try a different combination of display settings"
The machine is a Dell Precision T1600.
Any help appreciated.