LC 7.0 on Debian, both give true. And the second one, if you change it to 'is not a number', gives false. Dunno! Peter -- View this message in context: http://runtime-revolution.278305.n4.nabble.com/Possible-insanity-or-is-it-LC-7-0-1-tp4687816p4687817.html Sent from the Revolution - User mailing list archive at Nabble.com.