Perhaps your projector doesn't support the resolution you are outputting to it? OR... are you sure you have enabled the 2nd output on that card? Go under the Windows display properties and see if both monitors are enabled.
both monitors are enabled and second monitor is showing as a 2nd display. I can drag the mediaplayer window to second monitor. But i want the mplayer window on 1st monitor at the same time with all command(play/stop). second monitor only show the video/images. i have done it before with geforce 5200. pl. advice.