Problem:
Mathematical symbols (along with figures & tables - ie all GIFs)
have a white background, rather than a background the same colour
as the WWW viewer.
Solution:
This is caused by the giftrans routine having been turned-off
during the latex2html run. It should be turned on
(via the GIFTRANS environment variable in the latex2html.config
file) and latex2html re-run.
HOWEVER: remember that
users who have changed their XMOSAIC (etc) default background
colour to black will now be unable to see the tables, figures, symbols
since the GIFs are displayed as black-on-black under html
(see Section 8.4.1).