set up 4 monitors, why can't I?

nashartwell

Honorable
Oct 29, 2012
11
0
10,510
I recently aquired a fourth monitor. I am currently using three just fine. I am running 2 GTX 560 TI graphics cards in my system. assuming I can run two on each card it should work. When I go to Windows Screen Resolution to set it up it give me the following screen http://imgur.com/skdkkeH I can for example set up screens 1 + 2 + 3, but it automatically disconnects screen 4. If i set up 2 + 3 + 4. it automatically disconnects screen 1. It only allows me to run 3 screens at once.