I've seen this while looking at some RSS feeds. If you load http://slashdot.org/slashdot.rdf or any XML that has an xmlns, the pretty-printer skips over printing the xmlns attribute. I've noticed this with trunk builds for Win32 and Unix.
1) Please _ALWAYS_ list your build id 2) search for duplicates. *** This bug has been marked as a duplicate of 175946 ***