I have an older 12"Powerbook G4 867 processor, very early model that I have had for a good while. It had been a good piece of equipment and great for travel. It was running 10.2.8. I had been told it would run slow with any other OS X edition so I never upgraded it, really didn't need to for what I wanted. Long story short, I was trying to recover some music this morning and did a restore and have lost everything on the internal HD, files, OS X operating system and the computer will not even boot up now. Have I destroyed the computer or do I just need to get the OS X system disk and boot up from the start. The only thing that appears on the screen now is the Apple and the image doesn't go any further, no hard drive activity, no cursor, no dock at the bottom of the screen, nothing! I realize that I have lost the files but would like to be able to use the computer. I will have to dig out my OS X system restore disk or buy a new disk if I can't find the original that came with the computer. What version will run Ok on the 867 processor, think I only have 640 of storage. If I can get a disk, how does one boot from start up, will the machine recognize the disk if it is inserted after I turn the computer on? I'm hoping I don't have a new flat door stop. Any assistance is greatly appreciated.