I have a memo field, which I write to with a string ( this is a list of files and their pathways/locations ). The idea is that if the 'target' folder's contents change, this/these change(s) are reflected in my memo field. So I 'read' the contents of the relevant folder every time the form loads, and try to overwrite the Memo field with this concatenated string ( even if the folders' contents are unchanged - no harm done - just overwrite the data with exactly the same string - or so I thought ). However, I'm getting errors with this after the first 'write' to the field, saying record cannot be changed at this time, and it simply deletes the data, leaving a #Deleted where the data was, and making it 'unwriteable' to. Any ideas ? Thanks in advance.