Q: I am trying to help my Mom over the phone to open her CD tray on a PPC G-4 iMac - "Desk Lamp" style.  F12 is not working.

I am trying to assist my mother on the other side of the country.  She has the 'Desk Lamp' G-4 and cannot get the CD tray open.  I tried several things over the phone beginning with F-12.  Nothing is in the tray and nothing is working to open it.  Any suggestions?