Rotating scene: fast in one direction, slow in the other - what to do?

Hi! I have an issue that is enormously frustrating!!
When I for example use the cube to rotate the scene/camera view, it has normal speed in one direction, but either extremly slow or non at all in the other direction. If I want to change the angle with just one degree it is faster to move the scene in one direction 379 degrees instead of just one degree in the "slow direction".
The phenomenon is there also with a completly empty scene but it's doable, but with more and more items in the scene, the problem gets amplified to the extent...I get mad.
Is there a setting somewhere that can make navigation be different wheter you go clockwise or anti-clockwise?
Comments
I'm not seeing that - my suspicion would be a mouse issue, does your device have its own driver or is it generic?