Have you installed anything lately?
I have a iMac DV G3/500 (Special Edition) from summer 2000.
Anyway, I am using Mac OS 10.2.8. Recently, my start up disk's memory has gone done from 1.2 GB available free space to 668MB (currently).
I haven't saved anything on this disk so I can not understand why this memory has dissappeared. I have also had icons on the start up menu disappear.
Could someone please tell me how I can restore the missing memory?