I have placed bids in the last minute on the auction house several times now and every time I do there is a long series of beeps and the auction never seems to close down until considerably later when (so far) I eventually find the items in my mailbox even thought the auction house still had them listed for sale with "1 minute" remaining.

Is there a mechanism in place where an auction will reset to a minute when a bid is placed in the last minute? Any idea what the beeping is? Just letting me know an auction I'm bidding on is finishing? I don't remember hearing it unless I am actually there bidding in the last minute.

Thoughts?