You motivated me, one more time, to cross-check the data types in all my columns, and the VERY last one (#46!) was a mismatch - one was set to DATE and one was set to VARCHAR. Once I made sure both were set to VARCHAR, the forms now copy the records back and forth as they should. Thank you for giving me this hint - Ray and I had been fiddling with the data types to make my database more efficient and I just had a feeling that something got missed. I appreciate you taking a look at my files!