I saved a painting I was working on in photoshop for the past week, went to open it up this morning and got the following error: could not complete your request because an unexpected end-of-file was encountered.
I tried opening it up in other programs with no luck. Any suggestions?
Probably not good news I'm afraid. Hopefully you use Time Machine to keep regular backups of your work?
Have you tried to open the file in Graphic Converter (shareware application)?
I find file corruption practically non-existant these days. I would suggest that you maintain your machine. This can be done with Onyx http://www.apple.com/downloads/macosx/system_disk_utilities/onyx.html. Run all the tasks in the "automation" section of this application.
If you can do a drive check - checking your hard drive for physical issues might also be a good idea.