Monitor is black and blinking
by ctlmac - 9/8/10 7:47 PM
Have a G5 with a Samsung LCD monitor. Has worked fine until the other day when the monitor turned black and blinks with a white box in the top left corner. Can also see the desktop sometimes during the blinking. I hooked up another working monitor (same brand/model) and an older monitor to the G5 and had the same problem. Changed cables and still nothing. I am able to get the monitor to work if I restart in safe mode (extensions off). Any suggestions?