Probably, the last time that you used Hoster you were using it with the secondary display inactive. When you do that Hoster save the last setting that you used so when you opened it again, it opened with that last setting, then you played the video...my experience is that there is no way to resize the Hoster's secondary display window when you are playing videos, you have to reposition and resize it with a .kma playing. After you do so you can play videos and they will be display with your last setting.
