I would like the form to open and all that is visible to the user is a single checkbox (checked).
If I un-check the box, I need a field to appear.
If I check the box again, the field should disappear and it's contents gone.

The name of the checkbox is "No Issues."

The field that I need to appear is "Issues."

Thank you to whoever can help.

Set the Fields Visible property to No. Set the checkbox Default Value to True. In the After Update event of the Checkbox use this code:

If Me![No Issues] = 0 Then
Me![Issues].Visible = True
Else
Me![Issues].Visible = False
End if

Put the same code in the On Current event so the Issues field will be visible or not depending on the state of the checkbox.