I have a problem with getting mouse controlls to work properly its making the game pretty much unplayable.

First off the X and Y axis appears to have different sensitivities even though they are the same in the options menu. This is really annoying and I've heard it can happen with the wrong resolution but when i select the native resolution it still doesnt help.

But the biggest issue by far is the random movements that happens frequently when I drag the mouse too fast. If I for example try to swipe the mouse 360 degress in a straight line around my character the crosshair starts to jump up and down. Lowering the sensitity minimizes these spazzing movements as in the crosshair doesnt fly up to the sky and back but makes smaller jumps instead.

Also can't turn off mouse acceleration.