Ok, I have a G4, 350 Mghz, 80 gig HD and a gig of Ram and am currently running OSX 10.3.9. I just purchased the DVD version of OSX 10.4.I place the DVD in my player and it shows up on my desktop and tells me to restart my computer to install it. But everytime I do this, it reboots to my start up disk. I even hold down the "C" button while doing this. Am I just stupid or am I doing something wrong? Please help - ANYONE!