We have an old G4 833 that is currently running as an off-line DV editing suite. We are in the process of updating this computer to run 5.0 so we can transfer files from one edit suite to another. I am trying to back-up and erase files that are on the internal HD and have incurred a huge problem. I cannot drag any files into the trash, it gives me a message "cannot be moved to trash because it cannot be deleted". The whole drive is locked...I checked everything, ran Norton, Disk Warrior, nothing works.
Sometimes, its easier to just do an "Archive and Install" from the OS X installer disks. If the quick fixes don't work or there are still other problems I would consider it. Be sure to choose the option to save your applications and home folder files (I don't remember the wording). You could also try starting up off a different drive.
P.S. Don't use Norton - ever. It used to be good, but that was along time ago.