What version of CSS Form Builder are you using? I believe this was an issue in a n older version that was corrected in CSS Form Builder 2.0.1.
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.