>>>>> "CE" == Chuck Esterbrook <echuck@mindspring.com> writes: CE> If not, then I can post sample images and code. It would be interesting to see the examples. If they are too big, can you post a URL? -- Joseph M. Reinhardt, Ph.D. Department of Biomedical Engineering joe-reinhardt@uiowa.edu 1402 SC Telephone: 319-335-5634 University of Iowa FAX: 319-335-5631 Iowa City, IA 52242