Can you please indicate how you open (or in fact try to open) a video-file in BS.Player?
Are the file(type)s you try to open associated with BS.Player or do you try to load/play them from the control window?
Is BS.Player set to "Auto play"?
(under:
rightclick > Options > Preferences > General [General settings])
Upon installation of BS.Player did you allow it to internally (i.e. for use by BS.Player only and not interfering with or messing up any other applications) install its preferred codecs/filters?
What do you mean by "... I havnt got any filters on"?