[CSCMail-Users] cscmail doesn't work :(

[Simon <cr...@fr...>]

Hi folks,
I've searched a long time for a good email client so I tried cscmail. If
I run the installer it downloads all the necessary files and installs
them but when I try to start cscmail there's only an error message:

Use of uninitialized value at /usr/local/bin/cscmail line 55.
Can't locate object method "init" via package "Gtk::XmHTML" at
/usr/local/bin/cscmail line 55.

Can anyone help me, please?
Greetings, Simon