diff -urN libreoffice-4.2.0.1.old/wizards/com/sun/star/wizards/common/SystemDialog.py libreoffice-4.2.0.1/wizards/com/sun/star/wizards/common/SystemDialog.py
--- libreoffice-4.2.0.1.old/wizards/com/sun/star/wizards/common/SystemDialog.py	2013-12-30 11:24:14.200021127 +0100
+++ libreoffice-4.2.0.1/wizards/com/sun/star/wizards/common/SystemDialog.py	2014-01-01 14:34:21.173943513 +0100
@@ -15,6 +15,7 @@
 #   except in compliance with the License. You may obtain a copy of
 #   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 #
+import locale
 import traceback
 from .Desktop import Desktop
 
@@ -140,6 +141,24 @@
             traceback.print_exc()
 
     '''
+    The original string is in the system encoding but str accepts only "ascii" in python 2.6
+    This hack is not needed with python-3.0
+    '''
+    def createStr(self, sString):
+        try:
+            strString = str(sString)
+
+        except:
+            try:
+                sCodeSet = locale.nl_langinfo(locale.CODESET)
+            except:
+                sCodeSet = "utf-8"
+
+            strString = str(sString.encode(sCodeSet))
+
+        return strString
+
+    '''
     note the result should go through conversion of the product name.
     @param filterName
     @return the UI localized name of the given filter name.
@@ -153,7 +172,7 @@
             xPropertyValue = list(oObject)
             for i in xPropertyValue:
                 if i is not None and i.Name == "UIName":
-                    return str(i.Value).replace("%productname%", "LibreOffice")
+                    return self.createStr(i.Value).replace("%productname%", "LibreOffice")
 
             raise NullPointerException(
                 "UIName property not found for Filter " + filterName);