So I just bought an old powermac g4. When I first booted it, it had Tiger on it. But not knowing much about old macs it looked like it also had os9 on it cause I could choose to boot from a os9 folder. So without thinking I choosed to boot from it thinking it would boot into os9! But nope. All I get now when I try to start it is a grey screen with a small floppy disk icon with a flashing question mark on it! Then I used some restore cd (not from my mac) and erased my hard drive thinking I can boot somehow .Now I have nothing to boot from. When I start mac now I get question mark and the mac face flashing . I have tried to boot holding down alt, but no hard drive shows now I tried to boot it from OS X 10.0.3 cd (white with blue x) but that don't work. Can anyone please help me with this?