Hi, how is everyone? I just got a G4 Quicksilver Power Mac 800 Mhz and I don't have much experience on it. I bought it from a guy in the paper who told me it needed a new hard drive. He happened to have a new Hard Drive and he gave it to me, a 40GB. So I put in the new hard drive and when it started up, put in a new OSX Tiger Disc. What keeps happening is that the nasty "?" folder keeps popping up with a flashing question mark and Mac Folder. I held the "C" button during startup to no avail as nothing happens but the "?" and folder and I also restarted holding down the "option" button. When I do that...nothing appears there for me to check off and select and use. I am dumb founded. I need your help please. I've been doing a lot of searching and I find nothing that is useful. I just need that Mac o recognize the new HD. After the 1st one didn't work, I put in another new 40 GB drive and I get the same thing. 
Any help is appreciated, Please.
Any help is appreciated, Please.