Please see my reply to the previous post:
try Deleting the Dreamweaver Cache file from the users configuration folder:
If you continue to have problems, please provide some more details.
What is your OS?
What Version Of Dreamweaver?
What version of DataAssist.
You say you are using a Mac powerbook, but you do not include a Dreamweaver version, not do you include a DataAssist version, these are necessary details for me to be able to offer assistance.