I HAVE THE SAME PROBLEM MY MONITOR HAS BOTH VGA AND DVI INPUTS, I RAN A HDMI FROM PS3 TO DVI INTO THE MONITOR IN ALL COMBINATIONS OF SCREEN RATIOS ALL I GET POP UP ON THE SCREEN SAYS " DIGITAL " I ASUME THAT MEANS THE TYPE OF SIGNAL, BUT NO PICTURE, JUST BLACK SCREEN I THEN PURCHASED A DVI TO VGA ADAPTER AND TRIED IT IN THE VGA PORT OF THE MONITOR AND THEN IT READS ON THE SCREEN "NO SIGNAL". SO I RETURNED THE CABLE THAT I HAD AND TRIED A DIFFERENT ONE JUST IN CASE THE CABLE WAS DEFECTIVE , BUT HAD THE SAME RESULTS. ANY IDEA'S ?? MY SCREEN IS A 1280 X 1024 TOO!
The thread you are responding to isn't linked so I don't what the issue fully is but it would be useful to establish if the screen is known to be working -- as the symptoms are not dissimilar to those of a screen PSU problem.