Index: /trunk/src/org/openstreetmap/josm/gui/MainApplication.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/MainApplication.java	(revision 1170)
+++ /trunk/src/org/openstreetmap/josm/gui/MainApplication.java	(revision 1171)
@@ -196,4 +196,5 @@
                 System.out.println("Unable to find translation for the locale: "
                 + Locale.getDefault().getDisplayName() + " reverting to English.");
+                Locale.setDefault(Locale.ENGLISH);
             }
         }