No Image only a black screen

Hi all,

I am using VLC player 08.6i. From one day to another I can not play any more movies, of any type. I get only a black screen and the movie sound. This happened from one day to another, apparently without any cause, since I did not change anything, on my computer.

I am a little bit confused now, can anybody give me some advice ?

Thanks for your time,
DioV