The Original OS CD that came with the G#3 Mac I have does not start... the problem started when the hard drive did not boot... as it should. I get a grey screen with a small yellow folder flashing ? and a face...over and over again. I can hear the hard drive spin and I can also hear something going on in the CD player...but I can't get the CD to boot while pressing "C". What am I doing wrong??? Thanks for any help you can give me.