If Adobe Dreamweaver CS3 starts displaying errors, crashing, or behaving unpredictably, it is possible that the Dreamweaver user configuration folder is corrupted. The configuration folder stores individual user's customizations, such as snippets, menu options, extensions, spelling dictionaries, etc. To test for a corrupt user configuration folder, try the following:
Note: This procedure requires you to locate hidden files, hidden folders and extensions for known file types. By default, Windows Explorer doesn't show hidden files, hidden folders, and file name extensions that it recognizes.
To show hidden files, hidden folders, and extensions for known file types: