latest msttcorefonts broken?

[DvB <imasu@earthlink.net>]

I ran an apt-get upgrade a while back, which upgraded my msttcorefonts
package. Ever since then mozilla, which I had configured to use the
monotype-arial-iso8859-1 fontset from that package keeps printing the
following error message over and over (but doesn't appear to be causing
any other problems), even after I reset the fonts to the default values:

The font
"-*-*-medium-r-*-*-16-*-*-*-*-*-*-*,-*-*-*-r-*-*-16-*-*-*-*-*-*-*,-*-*-*-*-*-*-16-*-*-*-*-*-*-*"
does not support all the required character sets for the current locale
"C"
  (Missing character set "ISO8859-1")


Any ideas as to how I might fix this?