Hi,
it seems there are two places in the user guide where the deprecated
--band option to gnuplot is still used: In the cheatsheet chapter
("Plotting an asymmetric confidence interval"), and in the listing 36.4
in the state-space context. Since the latter is downloadable, I guess it
has to be replaced there as well
(
http://gretl.sourceforge.net/guidefiles/phillips-curve.inp). It's not
entirely clear to me whether those are generated files.
cheers
sven