From: moontoeki@... (Sung Moon) Date: 2002-01-24T11:35:28+09:00 Subject: a can be true and false a can be true and false at the same time a = "" if a != true; p "a is false" ; end if a; p "a is true" ; end this produces: a is false a is true It means a can be true and false at the same time. Am I right? thanks. sung moon