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Windows 7: 3 monitors connected to PC, won't allow use of all 3

18 Nov 2014   #1

Windows 7 Ultimate 64-bit
3 monitors connected to PC, won't allow use of all 3

Hi all,

So my problem is my computer recognizes that I have three monitors connected but when I try to utilize all three it only uses two. All of the monitors are different brands but I didn't think that should be the issue. The computer works fine and so does the monitor itself. The only way it allows me to use all 3 is if I duplicate one of my screens but I only want to extend the desktop. I've tried everything I can think of to fix this problem.

Help please?

My System SpecsSystem Spec
18 Nov 2014   #2

Windows 7 pro 64bit

Are the connectors all going through the same video card or is it all on board graphics?
My System SpecsSystem Spec

 3 monitors connected to PC, won't allow use of all 3

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