I totally resemble that remark! I had o-rings everywhere.I had a similar issue. I had purchased multiple DIDs and shuffled the top caps. None were aligned. properly. Several in this forum suggested trying different caps. Voila I got the right cap on the right DID. If you purchased more than 1 DID it may be worth checking this.
As for the O ring ----several of us thought the spare O ring was supposed to go on the threads and sported our DIDs with the O ring for some time before being enlightened.
