Hi Mike,
The difference in behaviour is because the expected ship date has no previously entered date (it's blank). The date control picks up the month/year of the previous contents of the field when only the day is typed. If there is nothing in the field, a date must be chosen, and the system date is the only one available to the control.
Perhaps we should default the expected ship date to the order date? If you visit the field, that's what the program will do.
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Andrew Bates