This has been going on for quite some time now. I am at a loss for how MS couldn't be bothered to make sure that such a low level feature was not ready to go or that they have not addressed it by now. A simple search online or on the WM Feedback App shows that a bunch of people are having this problem.
http://answers.microsoft.com/en-us/...g/30e73eb4-0cfe-4f10-aecd-314590b8dc68?page=1
http://answers.microsoft.com/en-us/...g/30e73eb4-0cfe-4f10-aecd-314590b8dc68?page=1