Update
Hi again
Managed to locate the WinFileCache.dat and deleted it, uninstalled Data Assist and restarted PC.
Went in again and deleted WinFileCache.dat file and installed Data Assist.
Opened Dreamweaver and the template, started Data Assist Wizaed but the same error still exists.
I have two tables in the database and when I select the other table I get the ID option but an this error when I select the other table - MM_ERROR: An undefined error has occured.
HELP
Peter