Aspect ratio problem

[KostaKing]

this started like 3 days ago.
when i go into a movie and try to change the aspect of the movie to 16:9 it changes for a second and goes right back to its original size.
now this happens in all movies also the movies i already saw on 16:9 i tried reinstalling bs player it doesnt help.
i also checked other media players and they do work properly so the problem is in bs player itself.
some images to demonstrait:
this is right after changing to 16:9.

and this is a split second after :
notice the grey lines where the movie should be? thats the proble, a movie should be there not the lines.
any suggestions?