Apple Powermac G4 Quicksilver Logic System Board 820-1342-b 630t-3827 630-3828 "black line across monitor bad" Questions

...black out but monitor is ok. Seismic work, huh? I'm an old 'Doodlebugger' from back in the '80's. (Vibroseis, and 'Shothole' {Dynamite) http://www.mitchamindustries.com/Products/detail.php?pId=18 ...

...black lines across it. When I tried to go to various sites it would ghost the sites and sort of wave colours, etc. I plugged it in to another feed and the screen was fine. It was suggested it was the ...