@Patrick, here's a patch for it:
Index: icepdf/viewer/src/org/icepdf/ri/resources/MessageBundle_no.properties
===================================================================
— icepdf/viewer/src/org/icepdf/ri/resources/MessageBundle_no.properties (revision 24689)
+++ icepdf/viewer/src/org/icepdf/ri/resources/MessageBundle_no.properties (arbetskopia)
@@ -72,7 +72,7 @@
viewer.toolbar.navigation.nextPage.tooltip = Neste side
viewer.toolbar.navigation.lastPage.label =
viewer.toolbar.navigation.lastPage.tooltip = Siste side
-viewer.toolbar.pageIndicator = av (0)
+viewer.toolbar.pageIndicator = av
{0}
viewer.toolbar.zoom.label =
viewer.toolbar.zoom.tooltip = Zoom
viewer.toolbar.zoom.out.label =
Would it be possible to post the file in question? Otherwise there isn't much that can be done to to help.