Just started using the new toolkit 1.5.1 and noticed a small issue. With the older versions, if the group address was the same between the database and the network, but the serials did not match then it would be hilighted in red to bring it to you attention - this does not happen - but it still does give the indiation that the serials don't match in the 'Exists' coulumn. This could easily be overseen. The other problem is that when you readdress a unit on the network, it lets you choose ANY group address - even if it is taken by the database. I can see some advantages sometimes of this, but generally is just anoying. The other problem that this creates is that if you make a network unit the same address as a database unit by mistake and then save the unit to the database after programming it - it deletes the database unit without warning :mad: I think that maybe a user - selectable option may be the may to go - or at least give a warning that the database unit will be deleted never to return. :)