when i searched the forum for the first time, i wasn't able to get to the bug report section, because i hadn't signed in. now, i've found a thread, which can explain, what's going on (you have to be logged in BEFORE you click on that link. perhaps it's my browser (opera 8), but when you click on the link and aren't logged in, the log in screen will open. when you've logged in, an error message appears, saying the thread/topic wouldn't exist. when you log in before clicking on the link, all works fine.):
http://forum.bsplayer.org/viewtopic.php?t=3955
well, that post is rather old. i hope, we'll be heard someday!
i will now open a new thread in the bug report section and put a link to this thread in it, as it obvious, that's this problem refers to a bug in BSPlayer and not to a user's wrong code...
many thanks for your help, Tizio!