I already have 2 screens on my PC. 24" (1920x1080) and 22" (1680x1050). I wanted to connect my PC to TV. I bought a DVI splitter and connected it on the 24" DVI port.
connect PC -> TV : working
connect PC -> monitor : working
connect PC -> DVI splitter -> TV and monitor : NOT
I don't know what's the problem, but I noticed that when I use the splitter my PC don't do anything, it's like when nothing is plugged :(
This is what my splitter looks like : http://www.computercableinc.com/ccinc/images/Splitter-Cable-DVI-D-MF-HDMI-F-Startech.jpg