Running the latest version of HJV on today's JDK 1.2 build F,
many of the fonts look terrible. The font on the welcome
screen looks bad. The font in the tooltips looks really
bad. In MailView the font is different than it is when
running on JDK 1.1.x, nothing is bold that should be, and
in the mail headers window clicking on an entry causes
it to be redisplayed with significantly messed up fonts.

I've attached two screen dumps showing the difference.

When HJV is started it says

JAVA2D_USEPLATFORMFONT not set