Cannot close reminder window

I am unable to close the reminder popup window. Even if I press the dismiss all button on the window close button (the x at the top right), it reappears after a few seconds. It has become really annoying.
I am on v7.2.37929.0

There are a few more recent 7.2.x versions in theĀ Release History. Can you upgrade to the latest and see if the behavior is the same?