Snowman, you are asking legitimate questions to which an answer cannot be provided at this point as once the answers become known, then the solution will also become easier to deal with. As Naviscope is no longer being developed and support no longer offered either, it is not possible to find from them exactly how the user agent is handled by the proggie and what part it handles either. Opera does not defeat the test acording to some opera users. Do other proxies defeat it ? Maybe, then again users will need to come forward and say so if they do. James Grant (visnetic) and Frédéric ( LNS ) are both aware of problem and looking if the application filtering module could deal with this and how. So for now i know of SSM and Naviscope that can defeat the test. Sorry, as much as i'd like to be more specific, i can't. Anything more would be speculation and until more is known on this i will leave it at that.