On Wed, 28 Dec 2011 23:19:27 -0700, Bob Proulx wrote: > I think it is a bug in the \< expansion. OMG, I thought it would be very hard for anyone to find out the answer. THANKS A LOT. works like a charm. -- Tong (remove underscore(s) to reply) http://xpt.sourceforge.net/techdocs/ http://xpt.sourceforge.net/tools/