I have a Vostro 200, Intel Pentium D (E2160) processor and Intel G31/G33 video adapter. The video adapter is integrated and I'm using a VGA splitter to connect to monitors. The monitors are Samsung 19" widescreen Syncmasters. I have Ubuntu 13.04 installed, running the MATE desktop environment. Both monitors are working, but the second one is cloning the first one. It won't let me extend the desktop. When I open the Monitor Preferences screen and click on the Detect Monitors button, it doesn't do anything. It only detects one monitor. Does anyone have any ideas of what I can try to get the desktop extended to the second monitor, instead of cloned? Thanks.