Tables :: Column Width In Table

One of the Tables in my membership database is named [WaitList] and has a linked Form.

The Form is configured to pull data from another Table named [Groups]. The fields are [Group ID], [Group name] and [Leader].plus others from a second Table.

When the [Group name] is selected from a Form Combo Box it succesfully records the [Group ID] in the Form and Table, but repeats the [Group ID] in the [Group Name] column of the Table. I am convinced that the problem lies with the Column Width setting on the Property Sheet which is currently set at 0;2.54, but trying various combinations has not solved the problem.

The Row Source for the [Group Name] field is
; SELECT [Groups].[Group ID], [Groups].[Group Name], [Groups].[Leader] from [Groups] and the Column Count is set at 1 (2nd in Table)

I believe the [Leader] field is a different problem in that the Form correctly finds the ID and the Name but not the Leader. I have checked the property sheet for anomalies, but without success.

I have built this type of Table/Form relationship many times but have failed on this occasion.