I have recently replaced the hard disk in my Powermac G4 ("Sawtooth" / 450Mhz / AGP) and am having the following problem:
Sometimes when booting up i get the "confused mac" question mark instead of the OS loading icon (after the chime), and it just sits there waiting. I can get out of this by booting on my MacOS9 cdrom and selecting the hard disk as my startup disk (even though it appears to be selected already), then rebooting. Then it seems to work for a couple of reboots before reverting to the above behaviour. More details:
The hard disk is new (a Seagate 7200RPM ATA-100 40GB). The old (apple supplied) hdd did not exibit this problem.
I have reinstalled the system twice (including initialising the disk to erase it) and the behaviour continues. I have even gone so far as to reformat it on a pc and run a surface scan of it, before re-initialising it on the mac (the test showed no problems).
If i hold ALT at boot, the disk does not appear in the system folder list (on those occasions that the problem is occurring).
Would be grateful if anyone who has witnessed a similar problem could give me some ideas. Problem has been nagging at me for a week so 500pts.