Sorry, if two of my mails arrived twice. I had a head-crash, and after restoring my backups, those postings (which were apparently in the spool directory at the time of backup) came back... Frank -- Frank Heckenbach, frank@g-n-u.de, http://fjf.gnu.de/ GPC To-Do list, latest features, fixed bugs: http://agnes.dida.physik.uni-essen.de/~gnu-pascal/todo.html