I have a dddw based on a database view and it has been working perfectly for years. Recently I have had to change the source of the data behind the view such that data is now retrieved from another database via a database link (i.e. replaced the description of view but no actual coding change made to my PB application). When I go into my main window and click the dddw, all the required data is there but if I click to choose an item from the dddw it is being picked up as a null value - it appears that the data is visually there in the dddw but that it is no longer in memory???