You may notify us by contacting us at customer service or filling in and submitting this form. This switch works when Windows Media Center is started in windowed mode but does not work in full-screen mode. DVD playback options will not be included in the new Windows Media Player even if you install Media Center Pack. Your suggestion of changing your code worked last time this happened a month ago. I have a test system here that ran windows. 1 with paid extra to activate Windows Media Center. You can notify us by contacting us at customer care or completing and submitting this form.This switch works when Windows Media Center is started in windowed mode but will not work in full-screen mode.DVD playback options will not be included with the new Windows Media Player even if you install the Media Center Pack.Your suggestion about changing code worked the last time this happened about a month ago.I have a test system here that was running Windows.1 with the paid extra to enable Windows Media Center.