Locale not supported

[Vincent Arnoux]

Hello,
I recently installed Ubuntu for AMD64 (I was running Ubuntu for x86 before) 
and I am facing the following issue when trying to run some apps (Mono 
installer, e.g.). I already tried to run: "sudo dpkg-reconfigure locales", 
but can't find the set of locales that would suit. I get the following error 
message:
(main.tcl:9252): Gdk-WARNING **: locale not supported by Xlib

(main.tcl:9252): Gdk-WARNING **: can not set locale modifiers

(main.tcl:9252): Gdk-WARNING **: Error converting from UTF-8 to STRING: 
Conversion from character set 'UTF-8' to 'ISO-8859-1' is not supported

(main.tcl:9252): Gdk-WARNING **: Error converting from UTF-8 to STRING: 
Conversion from character set 'UTF-8' to 'ISO-8859-1' is not supported

** (main.tcl:9252): WARNING 
**: /usr/lib/pango/1.4.0/modules/pango-basic-fc.so: cannot open shared object 
file: No such file or directory
Failed to load Pango module for id: 'BasicScriptEngineFc'
** (main.tcl:9252): WARNING 
**: /usr/lib/pango/1.4.0/modules/pango-basic-fc.so: cannot open shared object 
file: No such file or directory
Failed to load Pango module for id: 'BasicScriptEngineFc'
** (main.tcl:9252): WARNING 
**: /usr/lib/pango/1.4.0/modules/pango-basic-fc.so: cannot open shared object 
file: No such file or directory
Failed to load Pango module for id: 'BasicScriptEngineFc'
(main.tcl:9252): GLib-GObject-CRITICAL **: file gobject.c: line 1561 
(g_object_ref): assertion `G_IS_OBJECT (object)' failed

** (main.tcl:9252): CRITICAL **: file pango-engine.c: line 68 
(_pango_engine_shape_shape): assertion `PANGO_IS_FONT (font)' failed

** ERROR **: file shape.c: line 75 (pango_shape): assertion failed: 
(glyphs->num_glyphs > 0)
aborting...
Abandon


Does anyone know what I need to do ?

Vincent