Displaying answerbook requires support for the DPS extension in the
X server. The DPS extension is supported by most common Unix
workstations, but not by most PC/X offerings and is often an extra
cost item for X terminals.
A number of people have reported success using ghostview as a
replacement for the answerbook viewer, but this has the unfortunate
side effect of not supporting the hypertext links in the documents.
A better solution is to install a client side Display PostScript
Adobe has defined such a client side extension and call it
DPS-NX. Bluestone sells a version.
Solaris 2.6 and later come with an answerbook HTTP server which
can be used with any web browser.