If you don't have too many other extensions, you could try renaming the configuration folder. Close Dreamweaver and go to:
Hard disk: Users: <Your User Name>: Library: Application Support: Adobe: Dreamweaver 9
(Please note that <Your User Name> Should be replaced with the User name you use to log into your computer)
Rename the configuration folder to configuration_back. This will have the effect of disabling all of the installed extensions. You should open the extension manager and remove all extensions to clear the extension managers cache.