I have an iMac with the 10.4 OSX operating system installed. When I boot the computer it prompts me with this message: "Your startup disk is full. You need to make more space available on your disk by deleting files". I am able to login and see the desktop background, but I cannot see any menus.
How can I delete files or erase all the data? I have the startup disks but when I hold down C as the disks instructions say, nothing when I reboot.