The AutoCorrect setting in Office is replacing the three separate period
characters with a single ellipsis character which is not a supported character
in an Access control. In your form design you can disable AutoCorrect on your
controls.
Access AutoCorrect is changing 3 periods to an ellipses character (3
closer together dots). Since Access can't actually display the
ellipses, it substitutes a wide | character. However, if you were to
actually print a report, it would show the ellipses character.
You can change this behavior by deleting the change from the
AutoCorrect list, or simply set the form Control's Allow AutoCorrect
property to No.