The Navigator helps you to get a quick overview over documents with many pages. It is one of many modules in the standard package of Calamus SL2006. We have now released a bugfix version:
Navigator: The changes in version 1.52 [2013-06-13]:
If you already use Calamus SL2006, get the updated Navigator version as of today from the appropriate product page, not in My Calamus
(because this module is part of the SL2006 standard package).