I just got yet another power mac and this one is a MDD single 1.25ghz. I upgraded the ram to 2gb and have 2 hdd in it. Now the problem is whenever I boot it with my aluminum Cinema Display the screen stays black unless I unplug the display from it's power adapter and plug it back in. Now, when using an older Cinema Display with adc plug there is no problem. Anybody have any idea why this happens?