I have registered for Bt sport using my daughters laptop however when i now try to log in on mine its seems to load but does not get to screen showing picture, is this because you can only watch it on the laptop it was registered with?????
If it's a PC - Windows or Mac - it needs Microsoft Silverlight installed to play the video.
If it's installed, but you're not sure it's working, try http://support.akamai.com/silverlight/ (and click on the Play button).
If you're getting obscure error messages, see if it's covered here: http://bt.custhelp.com/app/answers/detail/a_id/45987/~/bt-sport-app-and-online-player-error-messages