In case you are suffering with getting a workable postscript picture out of Maple 6.02a (on win2k pro, at least), your ps.dll file is bad.
Replacing the ps.dll file with the same-named file from Maple 6.01 seems to solve the problem.
Another way to solve the problem is not to include titles in your plots. (Of course all my plots are so clear and intuitive as to render titles completely unnecessary - NOT!)