Long story short......Tried to reload os9 with CD went through entire install, no problem, tried to re-start......no dice.....now if I try to start with the CD, Hard drive cannot read CD so I am limited to only being able to read what is on CD and not use it. First Aid comes up with, Invalid PEOF 188048,1503....I am no expert but it looks bad......Help!....(flashing File with questionmark on screen, not disc)