I didn't think I'd explained it very well! I have my properties table linked to my valuations table by property ID. If I create a query I get:
Property Valuation Date of Valuation
Address 1 £350,000 30/10/04
Address 1 £365,000 30/04/05
Address 2 £240,000 30/10/04
Address 2 £260,000 30/04/05
When it comes to putting in the next valuation in six months time I want a form that lists all the properties, without the previous valuations, but ready for the user just to type the new valuation and date in beside the relevant property.
Property Valuation Date of Valuation
Address 1
Address 2
At the moment the only way I can think to do it is with a main form with the property details and a sub form with the valuation details but it's too time consuming for the user to select each property individually to put in the current valuation when they've got 30 valuations to enter in one go. It would be much better to have a list of the properties ready to take the next valuation.
Hope that's a little clearer!