One little problem on font setting

Dear all,

I am using Mozilla 1.2.1 with XFree86 4.2.0. Mozilla and XFree86
were installed through FreeBSD's port collection. Everything seemed
alright until I tried to set appropriate font for Korean enconding set.
My problem is that the drop-down menu in font preference display
only one font namely "Fixed". Although the font can display Korean
webpage, I don't like the font's width. In order to set appropriate
font satisfying with my interest, the drop-down menu should display
all fonts installed on my system. I have no idea how to do it.
Note that previous version of Mozilla, perhaps 1.0.1, did not
have any problem with font setting. If there is anyone who knows
how to solve my problem, please post any advice for me.
Thanks for the care to answer my question.