Thanks for your suggestion Bob. For some very strange reason - this still isn't working. I tried the code that you suggested... and it still opens as a new record... Mind Blown!
Bulzie - I've even changed the Autonumber field and removed the initial formatting "ECC1" - deleted all records (they are only test ones) and tried this again. Still, no joy.
Would anyone be able to help if I shared the database? Can I send this via private message (don't really want it public)
Cheers,
Leigh