Jarid,

>Yup, I have the latest BLG dated 27-05-2008.

Did you remember to rebuild the MMBusinessLayerGenerator project?

If you have the latest version, the BLG's mmBusinessGeneratorFactory should contain this method:

#if VistaDB
		public override mmDataAccessBase CreateDataAccessObject(string currentDatabaseSet, string databaseKey, ArrayList dataAccessClassList, string connectionString)
		{

			if (mmVSSolution.GetDataAccessClassFromList(ref currentDatabaseSet, databaseKey, dataAccessClassList).ToLower() == "vistadb")
			{
				return new mmDataAccessVistaDB();
			}
			else
			{
				return base.CreateDataAccessObject(currentDatabaseSet, databaseKey, dataAccessClassList, connectionString);
			}

		}
#endif

And the BLG's Factory class should contain this method:

#if VistaDB
		public override mmDataAccessBase CreateDataAccessObject(string currentDatabaseSet, string databaseKey, ArrayList dataAccessClassList, string connectionString)
		{

			if (mmVSSolution.GetDataAccessClassFromList(ref currentDatabaseSet, databaseKey, dataAccessClassList).ToLower() == "vistadb")
			{
				return new mmDataAccessVistaDB();
			}
			else
			{
				return base.CreateDataAccessObject(currentDatabaseSet, databaseKey, dataAccessClassList, connectionString);
			}

		}
#endif

Best Regards,