[Bug 36130] Tabs appear as squares in evolution

[Manu Cornet]

Public bug reported:
https://launchpad.net/malone/bugs/36130

Affects: evolution (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
I am using Ubuntu dapper (up to date) with :

LANG=fr_FR.UTF-8
LANGUAGE=fr_FR:fr:en_GB:en

When writing a message in evolution, TAB characters aren't inivisible,
and appear as small squares instead (see the attached screenshot).