For you Mac OSX users, the program that has been the problem is "Preview". It does not like to convert pict into jpg. And apparently it does something funny with the pict to PDF conversion although some folks are gettting a black picture.
-- Regards, John Blacet Blacet Research http://www.blacet.com
-- Regards, John Blacet Blacet Research http://www.blacet.com