[AccessD] Error 2110: can't move the focus to control...

Dear List:
 
I am getting an error 2110: can't move the focus to the control...
 
It occurs in this code:
 
Private Sub imgGraphicForTimeEntryNarrative_Click()
    Me.imgGraphicForTimeEntryNarrative.Visible = False
    Me.TimeEntryNarrative.SetFocus
End Sub
 
in the SetFocus line.  
 
After I get the error, if I press F5 the program carries on normally setting
the focus to TimeEntryNarrative.
 
However, there is a condition that causes this.  Mostly clicking into
imgGraphicForTimeEntryNarrative (which is a graphic OVER a text box.  The
graphic shows if there's nothing in the text box and is made invisible when
there is something in the text box), works fine.
 
But if the user clicks into one of two other text boxes and then clicks
imgGraphicForTimeEntryNarrative, the error occurs.
 
Both those boxes have a LostFocus event as follows:
 
Private Sub txtEditWorkedTime_LostFocus()
 
    Me.cmdExit.SetFocus
    Me.txtEditWorkedTime.Visible = False
    Me.HoursBillable.SetFocus
 
End Sub

If I temporarily disable that module:
 
Private Sub txtEditWorkedTime_LostFocus()
Exit Sub
    Me.cmdExit.SetFocus
    Me.txtEditWorkedTime.Visible = False
    Me.HoursBillable.SetFocus
 
End Sub
 
then Private Sub imgGraphicForTimeEntryNarrative_Click() works.
 
I'm not opposed to a quick fix or workaround for this.  But I have gotten
this error before - does anyone know the general cause (or general
solution)?  Odd that after I get the error I can resume code execution and
it works!
 
MTIA
 
Rocky Smolin
Beach Access Software
858-259-4334
www.bchacc.com <http://www.bchacc.com/> 
www.e-z-mrp.com <http://www.e-z-mrp.com/> 
Skype: rocky.smolin