I am using a Mac G4. I have upgraded to OS 10.4.11. I need to install Classic for some older applications I use. How do I go about this? Do I need to use my original OS Discs and reinitialize my hard drive? Do I then upgrade that system to 10.4.11? If so, then when i previously upgraded to 10.4.11, it must have dropped Classic. How do I avoid that happening again? is there anyway to avoid having to reinitialize? I have a Maxtor external Hard Drive. i use for backup. Can I install Classic on it, and use it as a startup disc when I need to use those Apps?