I see that no one has responded to my questions about my iMovie problem. Perhaps that is the answer - there is no answer. But, there may be an answer. I'll try again: My iBook G4 is still running OS X.3.9. Recently the internal hard drive started to fail. I bought an external firewire drive, and an Apple genius transfered the contents of the internal drive to the external drive. Then a new hard drive was installed, and the contents of the external drive were cloned to the new internal drive. So far, so good. Now, my iMovie will not open at all, and iPhoto is giving me heat about missing some files. I have tried to re-install iMovie from the iLife 4 install disks. The iLife install disk says that some iLife applications are open, and I must close them to install. None of the iLife apps are open. When I network my iBook to my desktop, I can open the iBook iMovie application on my desktop. I am confused. 1. Are there bits of the applications that are running in the background on the laptop that won't shut down even in a reboot? How do I handle this? 2. If I just upgrade the OS to 10.4 and then try install the most recent version of iLife, will this work? Luther ____________________________________________________________________________________ Sponsored Link $420k for $1,399/mo. Think You Pay Too Much For Your Mortgage? Find Out! www.LowerMyBills.com/lre