Can you un-install OS X on Titanium PowerBook G4 667Mhz. Came with OS 9/OS X, but is not the most stable computer. I have upgraded the OS X to 10.2.8, but I never use system X. It is used to drive a BetterLight Scanback camera system, using ViewFinder software through a Prismo31CB SCSI card. Experience lots of ViewFinder crashes. I have had discussions with the camera manufacturer and set the card up according to their settings. This seems to help for a while, but then the ViewFinder software starts crashing all over again. Also have a dual processor G4 867 with same OS configuration and is always crashing. We need to use OS 9 because certain printers (EPSON 5000 and 7000) don't have drivers for OS X.