I have a 30" Apple Cinema Display that works fine until you plug the display hub connector into the computer. When you plug either the USB or the Firewire connectors into the host computer, the display goes black. Unplug them, and the display comes back on. I have had 2 different power supplies - same thing happens on them both. I believe others have seen this issue with these monitors, but I have not seen a solution. Any ideas about what may be causing it? Capacitors somewhere in the display? Faulty power board in the display? Would love to figure out how to fix it - it's a great display otherwise.


