Hi - I have been asked to look at an Access database - one of the forms is showing errors rather than data in the textboxes. The form is made up of three forms, a parent, child and grandchild. Moving through the records on the parent form updates info in the other forms. My problem is that I can't identify where the data is coming from. If I right click on the textboxes I just get a fieldname in the ControlSource property. Clicking further to go into the Expression Builder does not give me any further info.

How can I work out where the data is coming from? ie. if it's directly from the tables then Relationships should determine the links... but it may be from queries etc?

Thanks

Chris