I was trying to put custom icons on some of the folder in my dock and something has gone dreadfully wrong. I am unable to open System Preferences or Applications, or Firefox. I get an error message saying they can't be opened because they are in the trash. But I've searched the trash and they are not there. How do I restore? Do I need to re-install? if I do that, will I lose other items I've installed on Mac, like my pix? Can I get them from the Time Machine since I've hooked up an external drive to use for pix and backup. I thought Mac was supposed to be easy. I figured i'd at least get a warning before I made some stupind move. Even Win says "are you sure you want to do this?" Many thanks in advance.