Originally Posted by
ItsMe
The square box inside the checkbox control indicates the value of the control is undetermined, aka Null.
Checkbox controls are tri-state. They can be Yes(-1), No(0), or Null.
If your table is linked, using the Bit field in SQL server as the control source of your checkbox should not be an issue. If IIRC, 1 is Yes and 0 is No with the Bit data type and Access will make adjustments. I would check that there is an actual value, 0 or 1, stored in that record you are viewing via your Access form.