Install the latest version of DataBridge... there was an error in a previous version where it would replace ? with %s when you add the dynamic dropdown.
You can manually change it back to ? in your recordset on the page to fix the problem.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.