Nail's home page is currently at . If the version you have is older than a few months, please look for a new one before reporting bugs. This may be a privacy issue, but it is nearly impossible to fix the error without an exact reconstruction. If you have an idea how to improve nail, you are also invited to write me. But you should remember that nail's primary goal is to remain clean and simple.
All ideas are worth at least a discussion, though.
Gunnar Ritter Freiburg i. Br.