Mail merge date format

Problem: Instead of EU date format(7.8.2009), US format appears (8/7/09)
In Word -
Tools - Options

this option;  Confirm conversion at Open
it should be checked!
Then re-merge documents,
and during merge there will be options to choose -
OLE is US format
and DDE is the right format which should be checked during merge.
Previous documents which are already merged should be re-merged after the Conversion options is checked.