I have an old Mac that cannot be upgraded past System 8.6.1. Suddenly, out of nowhere, I have gotten an error of "the finder has unexpectedly quit". I get this if I touch anything on the desktop; therefore, I cannot access the system folder to trash the preference finder file. Trying to use disks is getting me disk errors that the disks cannot be recognized; etc. Does anyone have any suggestions that I may try. I had just completed editing an entire book when this occured and your help would be extremely appreciated. TIA!