Did you implement the VisAuditFilter and tried it?

I have the following strange result:
IE5.5 sometimes ( http://localhost:8080/ch15) delivers only 
...
Big 
in place of
Big Brother is watching 'etc.'
http://localhost:8080/ch15/jsp/xTrips.jsp
I get the total message: Big Brother 'etc.'

Netscape version 6 seems to send always the total message.

My questions are: do you understand this behaviour (of IE5.5),
did you come across this too?