on 06/08/10 11:49, Navendu Sinha at navendusinha at gmail.com wrote: > Hi Everyone, > I have a Ti Book G4 400 15". > The display has been acting up on me. I see nothing but vertical color bands > on the lcd. The xternal display seems to work fine though. Can anyone suggest > me what to do next or how to fix this problem? You probably need a new (or used) display; i.e., the top half of your Powerbook. Internal cable connecting display to powerbook may also be failed.