In article <[log in to unmask]>, [log in to unmask] says... Thanks for the detailed response Writ - much appreciated and I now see where I was going wrong. Bruce - that link is good too. I've been to that site before but I never thought to look there. Cheers Peter -- http://www.beluga.freeserve.co.uk * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *