Problem saving locations when multiple appointments are being viewed

Hi,
When I am viewing multiple appointments and I try to save a location the data that gets saved reflects the data in the open appointment that is above it. So, if I am saving an appointment lower in the list, it will be saved with the location data from the appointment above it. I hope that makes sense. It sounds like a bug. Can you confirm it for me please because I am going round in circles with my setup.
Thanks very much.
Karen.