I have this old apple monitor, its a see-through CRT screen, not sure what they are called but its very retro. Anyway its had this weird issue where if I unplug the power cord to may mac (and therefore to the monitor also, as it gets its power from the one cable from the video card) I get this rapid clicking sound from the monitor and when I plug it back in. (I read somewhere this is the sound of the monitor relays switching on/off) Then when the computer boots the screen stays blank. I know the monitor has power as I can switch the mac on from the power button on the front of the screen. In the past when this has happened the problem miraculusly goes away when I try to start up again a day or so latter, this time however its not working... Have tried to resit the video card, no change. Any one have any ideas what the problem is with unplugging the power from these old screens?