Black-White bars while playing movies - Please help me

[ptspc]

Hi,

I got a strange problem while playing movies on Bs-Player.
I installed a new windows 8.1 on my laptop , the player worked fine for a few days and then suddenly in one day when I tried to play a movie I got this :



I tired to :

* update the codecs on my comp - no change
* uninstall then install the player ( remove every trace even from the regisrty ) - no change
* install the newest nvidia driver - no change

the funny thing that in other players its all good, I can see the pictures clear as crystal.

So anybody can please help ?

Thank you very much,
Peter