Can't Boot to osx cd

I have a imac G4 1.25ghz, I just bought a Pioneer dvr-108 dvd burner for it and can't get it to boot from the cd, it always goes back the the harddrive. I have tried all the jumper setting I have put them on seperate cable (since the board has two ide connectors) and I have put them on the same cable. It shows up in the os, I can even click install os x and then it restarts but again goes to the harddrive. Does anyone know whats going on? Please Help

Have you tried holding down C when you boot up

Look here under the heading, Booting.


http://www.finseth.com/parts/mac-keys.html

It says it right on the CD: Hold down C key to boot up from CD.

Yes I have tried holding down the C key and also option-alt-shift-delete. Nothing

I forgot to mention, that sometimes it will start with a gray screen then go to another screen where it switches between the folder with the faces and the question mark folder for a few seconds then it goes to the screen with the apple, and proceeds to boot from the harddrive.

Have you tried startup disk in system prefs? Just fishing now.

yea I have set it to boot to the cd. Do you know what the jumper settings SHOULD be? sould I put them on the same cable or use one for each drive and use both of the IDE connectors on the board?

Don't know about jumper settings. I only have one extexternal drive. Sorry!