Hi Michael and Justin, Thank you for your help! I've submitted a bug (#359707) and will follow its progress. Ed -- Edward H. Hill III, PhD office: MIT Dept. of EAPS; Rm 54-1424; 77 Massachusetts Ave. Cambridge, MA 02139-4307 emails: eh3@mit.edu ed@eh3.com URLs: http://web.mit.edu/eh3/ http://eh3.com/ phone: 617-253-0098 fax: 617-253-4464