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[Tizio]

You can try to delete BSplayer preferences file (BSplayer.xml) and see if the problem persists..
(it should be located under C:\Documents and Settings\USER_NAME\Application Data\BSplayer\ or in BSplayer installation dir, by default C:\Program Files\Webteh\BSplayer\ or under C:\Users\USER_NAME\AppData\Roaming\BSplayer\ if you are using Vista)

Find BSplayer.xml file, then delete it (or rename it if you want to backup your BSplayer settings) and start BSplayer.. then check if the problem persists