At work I'm on a DP/PCI-X 2.5 G5, 6GB, R9600XT The second display has been breaking for no apparent reason, on and off, for a while now. There's 2x viewsonic panels, both DVI and D-SUB inputs on each, and the Radeon has DVI and ADC outputs. No matter how they're hooked up, and which monitor is where, nor how they're adapted from the ADC, one will work, the other won't. Cables are all tested good as well. Further confounding the issue is that the video card does work - I tried it in another machine (and it's known good 9600 in here) - it's this box. Beyond that, even an archive reinstall didn't fix it. But sometimes it'll work out of the blue for a day or two. PRAM reset fixed it one time, but none of the other dozen or so times I've tried it. Working on one monitor sucks, apple is worthless as far as helping out. Anyone run into this type of thing before? Suggestions before I go insane?