I have a nice Samsung 226BW that I wanted to use with my Power Mac G4 / with GeForce4 video (64MB). The problem goes like this. I originally installed Mac OS X on it while it was connected to a 19" Dell panel. Everything went really well. So I connected the Samsung 226BW and did 'detect displays' - Monitor detected and I can run it at the native resolution. But when I restart the Power Mac G4 - it starts but I get no signal going to the monitor.