My problem is similiar in that not only has my library vanished the library tab button is no longer on the browser you know the one right next to the search tab. I uninstalled and reinstalled limewire but the button isn't there it's completely missing in action. But when I reinstalled and downloaded some files that I previously had it limewire prompted me that said already exist when I went to the folder where the sshared folder was supposed to be there's nothing there. Help please!!!