I have a query (which is based on a sub query) as follows:

SELECT Max(t_costs.DelDate) AS MaxOfDelDate
FROM [q_MaxOfBBOMDeliveryDate-Sub] INNER JOIN t_costs ON
([q_MaxOfBBOMDeliveryDate-Sub].MaxOfBOMRev = t_costs.BOMRev) AND
([q_MaxOfBBOMDeliveryDate-Sub].Job_ID = t_costs.Job_ID) AND
([q_MaxOfBBOMDeliveryDate-Sub].BOMType = t_costs.BOMType);

The control source for my unbound field is:
=[q_MaxOfBBOMDeliveryDate]![MaxOfDelDate]

.... but this is giving me a #Name? error.

Format of the control is Medium Date

Your help would be appreciated.

thanks
sandra