I let my roomate use my mac to surf the web, and to enable him to keep his preferences separate from mine, he has his own user account. Today when he went to use Safari it displayed a question mark and wouldn't work. He says the wireless signal was strong, so I know that's not it. When he didn't have any luck clicking on the icon on the dock, he tried dragging it to the desktop, which, of course, made it go up in smoke (forgot to mention, I run tiger). Now Safari is absent with out a trace on his account, though it's working fine for mine. I thought dragging an icon from the dock merely removed the applicaiton from the dock, not the account! How do I get it back? Is it possible to do this without a reinstall of OSX? 