fonts in msttcorefonts appear blank

[Leni Mayo <leni@moniker.net>]

Hi -

I've just done:
  apt-get install msttcorefonts
and the fonts seemed to install fine.  The fonts are being served by 
xfstt, and
  $ xlsfonts | grep msttcorefonts
lists all the -msttcorefonts-blah-

But in xfontsel, the window pane that normally shows the font symbols 
appears blank!  Likewise, in
  $ xterm  -fn '-msttcorefonts-courier \
                  new-bold-r-normal-bold-0-0-0-0-m-0-iso8859-'
the cursor moves when I tap the keyboard but I don't see any characters.

Any ideas on how to debug this?  Do I need to do some additonal 
configuration after installing msttcorefonts?

Leni.