Ok, I've been having problems lately with Safari. It has become increasingly unstable. It was crashing several times a day then the latest update helped to only get safari to crash once every couple of days. Well, Safari finely crashed and it won't launch without crashing a millisecond after appearing on the desktop. So I decided to restore a more stable Safari from Time machine. The problem is, Mountsin Lion won't let Time machine delete the troublesome version from the Applications folder. I get a Message which states something like " Safari can't be deleted because it is a System Application". So, how do I get Time Machine to do its job and Restore an earliry more stable Safari? Thank you!!!!!!