So I have a 15" powerbook that I hook up to my Formac LCD Display. It's the older style with the ADC connector, so I use an Apple ADC to DVI Converter. I have had it since mid-December, usually running with no problems. Last week I was rendering some stuff in FCP and I left the room as It was gonna be like 25-30 mins.( friggin' dvGarage dvMatte pro, love/hate relationship.) So anyway, I come back to wake up the screen and it "wakes" up, to black screen. No matter what I do, i can't get anything to register on the screen. Even with my powerbook being open, it "Knows" that the lcd is there, even when I change resolutions, the light flickers, the backlight goes off, then comes back on, but it's still black. I haven't had much luck at the Apple support site, or with Formac. I have already trashed the display prefs in the Library folder, and it didn't help. I hooked my powerbook up to another monitor, and it worked just fine. I even hooked my Formac up to a PC with the DVI convertor, and that worked too. I'm really starting to get frustrated, and I would GREATLY appreciate any help.