Hi Nancy, I've answered your questions. Hope they might shed some light. So the combo box isn't likely to be the problem?

>Are your datasessions private? YES
>
>Do you have autoclosetables = .T.? YES
>
>Should you be wrapping your tableupdate in a transaction and checking what tableupdate returns?
>
>Why do you
>> _screen.forms(1).dotask('do form find1 WITH "PROPMGR"')
>instead of just thisform.release?
>HTH FIND1 isn't my switchboard, but another form I want to use.
>
>>I have a series of forms based upon a "switchboard" which is hidden when it isn't active. Generally I close forms using command buttons but I have one instance where I would like to control the form from a combo box.
>>
>>cboStandard::valid()
>>local i
>>if this.value = 'No'
>> this.parent.txtHidden.value = ''
>> this.refresh()
>>else
>> *// default is to save so we update, bktables holds the table names
>> for i = 1 to alen(thisform.bktables,1)
>> select (thisform.bktables[i,1])
>> =tableupdate(.t.)
>> endfor
>> _screen.forms(1).dotask('do form find1 WITH "PROPMGR"')
>>endif
>>
>>Then forms(1).dotask looks like:
>>
>>LPARAMETERS tcToDo
>>local m.lncount,i
>>THIS.Visible = .F.
>>m.lncount = _screen.formcount
>>if m.lncount >= 2
>> for i = 2 to m.lncount
>> _screen.forms(i).release()
>> endfor
>>endif
>>&tcToDo
>>
>>However the datasession from the original form doesn't get closed so the data I see when I create another datasession the data I see isn't correct. Is this a problem with using a COMBOBOX or something else? I'd be grateful for some pointers.