Wrong check box value with imported data




I have a form, created with Livecycle Designer, that has some text boxes as well as checkboxes.

Data that is stored in an FDF-file is displayed correctly in the PDF. But any checkboxes that were activated in the FDF, though displayed as activated, have their standard value (off) in the data that is transmitted when I press the send button.

If the values of the checkboxes are changed manually, the transmitted values are correct.

How can I make sure that the check box value is not only displayed, but also transmitted correctly?