I have the latest version of Windows Live Messenger installed, but whenever i try and send a mobile message it says, "This message was not sent because messages can't be sent to this mobile number." It just started doing this a couple weeks ago for some reason. I used to use this feature all the time. I tried sending it to different contacts but i still get the same message. I have tried over and over now for a few weeks now and am getting really frusterated. I even un-installed Windows live messenger and re-installed it and that did nothing. Any suggestions or comments?