On Mar 8, 2006, at 8:42 PM, Matt Gabel wrote: > have the OS that came with my new ibook, but when I try to install > it on the powerbook it says "this software can't be installed on > this computer". The disks that come with a new iBook have a version of Mac OS that is limited to only being able to install in that iBook. It's not a general Mac OS X install disk set. For that, you need to purchase or borrow a Tiger install DVD. -- Dennis Fazio dfz at mac.com