Saw the previous posts on emptying the cache et al. Using Mac osx 10.4 and trying to follow your instructions but can't locate the correct file. Application support > adobe > don't have a Dreamweaver 9 or CS 4 directory; only 'Adobe creative Suite 3 Design Premium', 'Adobe Asset services CS3', 'Adobe PCD', among other unrelated directories. I've opened each of these files, as well as others with no luck. Search also doesn't find files you mention in your instructions. Where are these files located in osx 10.4 CS3?
Have also tried uninstall/reinstall; both not replacing, then replacing existing files; same error.