Hi, I posted a thread earlier in year but unfortunately nothing that suggested resolved my problem. I have the dw does not have update capability message. the dw has the update properties set correctly. I have even changed the data object (actual datawindow) to another very similar one which I know works fine in another screen, but in this screen the dw error still appears. The dwobject that the data object is in is inherited from u_dw and is the same for both windows where the error appears and where it doesn't. any ideas?