Maybe you should update your version (at least take v1.37, the last without adware)
http://www.bsplayer.com/forum/viewtopic.php?t=6206 MISCELLANEOUS item
(a)
Have you selected some option such as Remember Pan Scan or Movie size in BSplayer Preferences?
Otherwise try to delete the BSplayer.xml file which is located in your BSplayer installation directory (make a backup copy before)
