Windows 7 - Access 2007 trying to make a control source tick box

I havent used access much at all, and what im trying to do it just create a tick box that will only effect the clients that are ticked. Creating a standard tick box when clicked effects the entire database when ticked. I know the procedure but it just doesnt seem to be working.

The database already has these boxes yet u cant just deplicate them as they are linked to there control and if u tick the box it just effects them both.