I could not install OS X 10.4.3 ("Tiger") on an iBook G4 with the hard drive wiped clean and no operating system. The iBook's drive OS 1 was unmounted and not repairable or restorable, and the other drive "Untitled" had 40GB available. However, when trying to install OS X Tiger, I received an error that there was not enough memory to do the install even though the OS requires less than 5 GB. Using the install disk as a startup disk just took me to the install procedure. Any ideas how to get the install to work, or is OS X 10.4.3 too advanced to install on this iBook?