What version of Hugs are you using? HGL and SOE don't work with any version prior to Dec 2001. (Someone broke the implementation of concurrency in the previous Hugs releases and it took many months for the fixes to make it into an official release.) -- Alastair Reid alastair@reid-consulting-uk.ltd.uk Reid Consulting (UK) Limited http://www.reid-consulting-uk.ltd.uk/alastair/