Dear Heather and list. The book had a line wrapped url. to prevent this I use tinyurl. www.tinyurl.com cheers bob Dr. Robert Hartley, Spinal Cord Group, Institute of Biomedical & Life Sciences, West Medical Building, University of Glasgow, Glasgow. G12 8QQ r.hartley at bio.gla.ac.uk http://www.gla.ac.uk/~rh82p/ Phone +44 141 330 4367