I've beat, hacked, smacked, whacked, hammered, elbowed and done everything short of actually getting the top to reseal and latch down properly so I figure this must be one of those little booby trap, just to drive us nuts things, that mfgs. do. Oh, it all goes back together just fine UNTIL YOU PUT THE FN NEW FILTER IN THE BOX!!! Sorry, I lost it there for a minute. Any input will be appreciated.:dontknow: