Mount&Blade Warband dialog flicker

[illuknisaa]

I downloaded the trial version of MB:W and the game works great on my set up apart from the annoying flickering I get dialog menus.

Does anyone know a fix for this? Basically the dialog menu works fine but when the game greys the background in dialog menu it flickers like crazy. I worder is it possible to delete the greying effect completely from the game files?