hi: thanks to the suggestions i received from the list and cubeowner, my cube it back. i am very, very, very happy ;-)) i removed the broken green cover, took out the video riser card and the video card, reset the pmu and put it back together again. apparently something was lose and needed to be reset. i tried it first w/o pressing the cuda switch, had power both in the monitor and the cube, but no video. when i reset the cuda everything went back to normal. g