My daughter gave me her laptop,macosx. Last night she changed the pass word to something I could remember.But just put it in sleep mode .So when I open it and try to go on Safari it did nothing. I right clicked and the menu said the application wasn't working. I clicked on one of the options and a error code -600 came on the screen. We had a storm and I thought maybe something went wrong or change so I did a restart thinking that might fix it. When it came back on all I have is the desktop picture but no dashboard or anything. I can't shut it down or anything. What happen and what do i do?