Imac G5 isight won't start up
I've got a 7 year old g5 isight. It is still running tiger. It was working more or less ok until the other day when it was switched off for a while. On booting up and logging in it refused to sleep or log off. I needed to shut it down so I had to use the power button to make it go off. It has started to become more unreliable with software issues eg force quit will freeze the entire desktop, you can only use kill -9 from the terminal to kill of an app that's gone bonkers. The ethernet was also not recognised and I had to use it with wifi (which was ok) I also see the beach ball thing a lot but that's probably FF being rubbish.
On trying to get it to boot up again after it was left off for a couple of days it wouldn't even switch on. I left it plugged into the mains and it randomly started up about 10 minutes after it was left alone. It won't get passed the grey screen with the apple logo. Holding down c to boot from the cd does nothing. The fans are running full pelt but it won't boot from anything. I tried unplugging all usb and firewire devices just leaving the normal keyboard and normal mouse and it is exactly the same. I'm sure I can hear the HD making some kind of noise.
Any ideas? The power light bottom right also goes off before the fans start up and go mental. Does this signify anything?
An install cd is now obviously stuck in the drive. The eject key won't make it come out so how do I get that out if the mac is indeed fatally broken?
iMac, Mac OS X (10.4.11)