In the conf file, I found this:
unbind msg - ident *msg:ident
unbind msg - addhost *msg:addhost
I commented out those lines.
Now, when I try to ident, Mutsumi does nothing when I type the correct password (and displays nothing on the DCC console.) A .whois confirms that the hostname settings for JamesTheGreat have not been updated.
When I type the incorrect password, Mutsumi says nothing, but displays "[11:03] (JamesTheGreat!
skip@kato-pppoa-ws-322.dsl.hickorytech.net) !*! failed IDENT JamesTheGreat" on the DCC console.