I have a G4 dual 867. It always worked flawlessly in OS-x (jaguar and Panther) I got a new G5 and so the 876 get a new task. for the next couple of months it has to boot in OS9. Old setup: Panther 10.3.4./ 60 GB sytem HD 2 x 80 GB striped HD(softwareRAID) 1.25GB RAM Superdrive + old CD-rom drive. The problem is that when I formatted the disc sometimes shows and sometimes it doesn't. Boot from Norton CD- Machines boot fine but no disc available Boot from OS-9 CD- Machines boot fine but no disc available After reformatting the disc in another machine isstall was possible. In fact I could even use the damn thing. Only problem was very slow copy from/to our Ethershare server. (16 minutes for 1 MB) I didn't trust the install and decided to install again. So now it; - won't boot from any CD - When I press any button during startup, I on;y get a lightened screen, but nothing on it. - When trying to boot from the HD it seems like an extension conflict. (which is very hard, because it should only load the CD driver & the USB driver) I've perfomed a Open Firmware reset, PMU reset, changed the battery, removed the extra RAM to its factory default, changed HD's etc. Does anyone have any idea? HELP!! To be complete; I've tried to use all 3 discs in different setups/positions/ATA channels.