> PowerBook G 4 500MHz > > Since yesterday a vertical blue line started to appear in the display > (not > black!) and doesn't go away. > > Nothing helped (PRAM & Power Manager-Reset and unplug/plug monitor > cable). > > Any suggestion? Thanks for help in advance. You're hosed. It's time for a new screen. Hopefully you have AppleCare. Try holding onto each side of the screen, slightly twisting and see if it goes away momentarily. That's another sign that the screen needs replacing. -= Ken =-