I am not sure what exactely is disabled in your app...
(I am referring to QV 10 in the following):
Go to edit script (CTRL-E), in the left bottom part enter data tab.
There is a drop down menu, I think you should see at least ODBC and OLE DB connectors.
Do you mean this dropdown is disabled? Or have you proceed with "Connect" and one of the selections? Which one?