From time to time, I've seen Dreamweaver create two instances of a recordset on the page, especially if you have gone in to edit an existing recordset.
I had a problem with DA Search crashing for sometime and couldn't figure it out, but it appeared to be the duplicate recordset issue.
You will need to look in your code for the duplicate recordset as it won't show twice in the bindings / server behaviours panel.
Cheers
Ian