I found this in the incident:
I was able to reproduce the issue on Windows Only with Form Builder 2 and i have logged a bug in our bug base.
To fix thie issue i have attached a WAFB_ListValues.htm file which will need to replace your file.
With Dreamweaver Closed pleae replace the attached file (WAFB_ListValues.htm) under this location:
C:\Users\<Your User>\AppData\Roaming\Adobe\Dreamweaver CS4\en_US\Configuration\Commands
delete the cache file before restarting Dreamweaver.