If anyone knows how to get my Powerbook to boot from the CD please let me know. The only thing I can think of to do is re-install the OS 10.4 and hope for the best.
C should do it (I checked) but keep it held down.
Have you tried running it without a battery? (does work I'm doing it now).
It sound's like a fault of some kind to be honest.
Macs can get virii of course but I'm yet to hear of one for OS X....