Comment 2 for bug 524136

As mentioned in https://bugzilla.gnome.org/show_bug.cgi?id=610544 by Sergey, the problem can be solved by changing the font in /desktop/gnome/peripherals/keyboard/indicator/fontFamily from "Helvetica" to some other font like "Sans" that has a larger unicode coverage.

Please include the fix for Lucid as it's simple and it affects a lot of international users.