date format does not update

date format does not update

If a user selects "Personalize" and selects a new date format the following happens when  save is clicked:
  • The date format on the Personalize dialog is changed and saved and a "success" message displayed
  • The dialog does not close. Nor do either of the buttons change to say "Close" or anything resembling that.
  • When you close the dialog, all dates remain in short format e.g. 18/07/2011

We are running on Windows Server 2003, Windows XP Pro SP3, IE6

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