computer: g4 titanium 1st gen 400mhz operating osx 10.2.8 screen works intermittently... then freezes, disembodies itself, and turns a quite beautiful changable sheet of plaid colours. dispite it's great beauty, I CAN'T USE MY BELOVED POWERBOOK without hooking up an external monitor! --which seems to be okay so far... when waking from sleep or rebooting the powerbook screen works for a short (5-30 minutes) period of time, and then the pretty plaid comes back. is this a videocard problem? any chance it's a software problem only? (i doubt it) any inexpensive methods of fixing this?????? PLEASE HELP I AM lugging around a 40 pound monitor with my laptop! imagine the scene at the airport.... thanks for your help... -richard.