On Wed, 24 Mar 1993 19:36:49 +0100 Eric Thomas said: > >In the list header you would code "Topics= Canada" and "Default-Topics= >Other", or "All,-Canada". This raises another point. I had a question from a user about what characters were valid in topic names. From a hasty look at the code I decided that everything except :,= and blank were valid. I've verified experimentally that an imbedded - is valid. But I guess it must be the case that an initial - would not be valid. Could you please state the exact rules? Thanks. ------------------------------------------------------------------------ Kent Fiala <[log in to unmask]> SAS Institute Inc., Cary NC 27513 USA 919-677-8000 x6646