debconf dialogue buttons garbled

[Cassiano Leal <cassianoleal@gmail.com>]

Hi,

The buttons on all debconf dialogues in my box are somewhat garbled.

As an example, this is a samba dialogue:

    ┌──────────────────────────────────────────────┤ Samba Server
│
                                      │
    │ If your computer gets IP address information from a DHCP server
on the network, the DHCP server may also   │
    │ provide information about WINS servers ("NetBIOS name servers")
present on the network.  This requires a   │
    │ change to your smb.conf file so that DHCP-provided WINS settings
will automatically be read from           │
    │ /etc/samba/dhcp.conf.
                                          │
    │
                                          │
    │ The dhcp3-client package must be installed to take advantage of
this feature.                              │
    │
                                          │
    │ Modify smb.conf to use WINS settings from DHCP?
                                          │
    │
                                          │
    │                               <Yes缁>
   <Nos缁>                               │
    │
                                          │

See that there is garbage after the acual button texts? This happens
on all debconf buttons. What could be causing this?

This is an up-to-date sid box.

Thanks,
Cassiano Leal