I've created a blank subform and added a lookup field to it. For some reason the Bidirectional Relation option on that lookup field within the subform cannot be turned on (the checkbox before Bidirectional Relation is there but nothing happens when I click on it). The subform is designed to add Contact names to an Account form, and I'd like the Account itself to be shown when looking at the Contact data.

Any help would be greatly appreciated.

Al