What happens if you start BSPlayer
not using bsplayer.exe, but using bsplay.exe or bplay.exe instead (both executables are in BSPlayer's installation folder)?
Did you already happen to see
this thread?
Note: in your situation it would probably concern "PlayWinPos type" etc (instead of "MainWinPos type") inside .xml-file!
Also make sure your playlist is cleared first and that "Remember movie settings" under Options > General is
unchecked/
deselected! Also check settings under Preferences > Video (General):
uncheck "remember-boxes" and check/select "Don't remember"-box. Then exit player after which you could delete the numeric value of "MainWinPos type" inside .xml file after which restart player and load and start a movie-file.