so i just installed assassins creed unity onto my laptop from the disk. I know currently there are alot of glitches but i have experienced something that i cant find help for. My game started up fine and the first part played well. As soon as you start playing as Arno i get blue flashing and textures turn a white or pale blue, like the outline of Arno, and inside building everything turns a kind of white or mist so you can see outlines but no detail. There is also a blue filter over some parts of the game, especially in buildings. It cant be a faulty game because i have tried two different copies and both of them do the same thing. the game actually plays fine but its impossible to play because of this issue. if it helps my specs are

6gb of ram

i5 3230m

windows 8.1

nvidia gt 750m

i am playing on a lenovo y500

they are fairly low specs but the game runs and plays well apart from this texture issue

any help would be appreciated

thanks