i use it with a dual view setup using vista os, the problem is, that during the boot i can see the picture on the connected monitors, but once vista boots up, the dual view is automatically disabled because vista doesn't recognize the splitter as connected device. the only way to bypass this problem is connecting one of the connected to splitter monitors, strate to the computer during bootup, and then after setting dualview setup and getting the picture, connect the vga output back to the splitter. Once it works, all good till the next bootup.