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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.

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This sounds like a driver problem. I would contact ATI for assistance. –  Ramhound Oct 18 '12 at 11:25
    
With reference to: support.amd.com/us/gpudownload/Pages/index.aspx Your operating system is not listed. What drivers did you use? –  Tog Oct 18 '12 at 11:32
    
Server2012 is not listed on the Dell support page either: dell.com/support/drivers/uk/en/ukbsdt1/Product/precision-t1600 –  Tog Oct 18 '12 at 12:00
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