After trying to clean my hard drive up, I restarted my computer after it froze. After the apple logo showed up on the screen, the message that says "You need to restart your computer" in 10 different languages comes up and prevents me from going any further. I restarted and it came up again. I tried Safe Boot, that didn't work. I booted from the installation disk for Mac OS X 10.5.6, I repaired the disk in disk utility and repaired the disk permissions. Both did nothing. So I have to restore my computer from my external Hard drive that has Time Machine backups from this morning to last year on it. There is a warning message in the time machine restore program (on the installation disk) that says that all data will be erased from the volume you select. Is this the external hard drive or the internal (Macintosh HD) drive?