I've got a 17" Studio Display (the last white model before the aluminium ones), and a Powermac G5 single 1.8. The 2 have been working fine together for 2 years or more, but the other day when I turned my computer on in the morning, the screen remained black. The white light still lights up on the monitor (a steady light, I know its not in sleep mode or anything). When the grey background with the apple should come on, it doesn't and just stays black - but my computer is still booting up as normal. I've tried pulling the ADC connector out and plugging it back in, messing around with it a bit etc., but no luck. I've just plugged a Formac Gallery monitor straight in by ADC and it works straight away, so I guess it's my monitor that's the problem Does anyone have any ideas on what it could be?