error window when starting a movie with double-click

[gribble]

Hey..

i have this weird problem for some time now. bsplay works fine for a long time, but suddenly everytime i "double-click" a movie to open bsplay and start playing i get these error-window (sorry, it's german):
Die Datei "path/to/movie.avi" (oder eine ihrer Komponenten) wurde nicht gefunden. Stellen sie sicher, dass die Pfad- und Dateinamenangaben stimmen und alle erforderlichen Bibliotheken verf??gbar sind.

first i thought it is a general windows problem, but i don't have these probs with ms media player.

so, anyone got an idea what might be wrong ?

greetings
gribble