Access Memo Field to WORD Bookmark Field

I am trying to get an Access 2003 Memo Field in a Table into a WORD 2003 Bookmark Field via VBA coding. If the memo field is 255 or less then it works fine. Anything 255 or greater then I receive an error “String Too Long” out of Access. I’m sure this is an elementary procedure I learned long ago but the recall is not there! Does anyone know what I’m missing? Thanks!