When I installed the html5 code hinting extension, all CSS code hinting doe not work. I tried disabling and then uninstalling the extension but I am only left with PHP code hinting in the preferences.
UPDATE: I fixed the issue by reinstalling dreamweaver and reinstalling the extension, don't know why it happened the first time...possible bug?
I am glad you were able to get it back to work - but, disappointed to hear that it took a complete uninstall-reinstall cycle.
What environment are you on? I didnt see the problem in my installations on Win7 and Mac 10.6.3.
I am running Windows 7.
I hope no one else has experienced this problem and was just a corrupted file or something on my end, that being said the html5 pack is amazing!
I can only wish that adobe will be able to port the flash toolkit to html5 as well in the near future!