Hi folks. I'm trying to install a retail version of OS X Tiger on an iBook G3 600mhz but all I'm getting is a blue screen after the initial grey screen with white apple logo. I've managed to get OS X Panther on it no problem but Tiger is just not playing ball. I'm having to boot up in Target Disk mode or use an external Firewire DVD player and it does the same thing every time. What I can say is that the iBook only has 128mb of RAM at present but I'm upgrading that in a day or two and I didn't think that would necessarily prevent the OS from being installed. Oh and it doesn't need a firmware upgrade. What am I doing wrong?! Help!