It is a good idea to select the ``Page Info'' item at least once while
viewing a DVI file. This item displays its results in the window.
The display includes a list of all the fonts used in the DVI file and
clearly indicates any that are missing.
(If virtual fonts are used then ``Page Info'' won't necessarily detect
all missing PK fonts. A missing PK font referenced in a virtual font
will only be detected if a character requiring that PK font is used
somewhere on the current page.)
also lists any \special commands on the current page,
showing their locations and arguments.