On 11/28/2004 05:00 PM, R. Blackman wrote: > Sorry about the messed up diagram in the last post. > I guess the formatting messed up. Nothing wrong with the diagram you sent. It looks OK as long as you view it with a fixed (monospace) font, if not, well, then it looks a bit strange. Lars -- Lars E. Pettersson <lars at homer.se> http://www.sm6rpz.se/