I have a AMD Radeon HD 7700 Series
It has 2 DVI ports and 1 HDMI port.
It works perfecty wih 2 monitors and i am going to add 1 more monitors and when i plugged in the monitor nothing happends, all 3 monitors are Samsung SyncMaster 2243. Are there any solutions without buying anything? I have Catalyst Control Center and it can't find the 3rd monitor to.