I currently have a Sager NP9150 gaming laptop. The machine comes with a DVI, HDMI, and display port. I currently have a Dell monitor and a TV connected - the monitor with a DVI and the TV with a vga to Display Port adapter. For some reason though I am unable to extend the desktop across the three monitors or use all three in some fashion. Is there a specific piece of hardware or software I need to enable more than one additional monitor?
Specs: Sager NP9150 Processor: i7-3610QM 2.3 Ghz 16gb RAM WIN 7 64 bit OS Nvidia GTX 670M and IntelR HD Graphics 4000