And a year later, it happened again HOWEVER, this time I took LOTR's advice and saved my incomplete files ! Thanks

Both incidents seem to have had a common cause....BROWSING a host and WHAM !!!!....a huge file count ensues and upon trying to either stop it from completely loading or trying to shut it down after it's loaded LW totally locks up and it takes several minutes just to shut down the entire app. Upon restart, I've gotten the error.