While I'm in problem-solving mode, I'd like to pick the forum's brains again if I may.
I have a 23" Apple Cinema Display that is normally used with the G4 Tower, also connecting a 17" display as well with the DVI to ADC adaptor. Screen is fine. I've recently attached the 23" via the DVI to ADC adaptor to my powerbook, and have since had a lot of noise/interference/buzzy lines in some areas of colour on the screen. Anyone know what this is? Thanks, Matt.

