Oops. Yet another personal reply slips through. I've cut off my mouse finger in penitence. Anyway, once you have a Web connection, the most excellent resource I have found for medical information is the Medical Matrix (I'm on the mailing llist too) Run by Gary Malet, it can be found at http://www.slackinc.com/matrix (thought it was down this morning...) John Hearns %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%