Don't think so, but ....
Try creating a textbox same size as the check box - DummyCheckBox.
ControlSource is =Chr$(252) thats a tick in Wingdings. Set the ForeColour to
black. Set conditional formating of DummyCheckBox to if [MyTextBox] = True
set the forcolour to a Medium Grey - similar to disables checkbox colour.
Then superimpose MyCheckBox over DummyCheckBox (send DummyCheckBox to the
back)
On Current of the form you want
Private Sub Form_Current()
If MyTextBox = True Then
MyTextBox.Enabled = False
Else
MyTextBox.Enabled = True
End If
End Sub
It's as close as I can get - not perfect but it allows you to put a tick in
the unticked boxes, but not remove a tick from a ticked box. Might give you
an idea anyway
Phil