Holding right mouse to look around unresponsive at times

[Malzian]

Since the latest patch it has become hard for me to hold down my right mouse at times to look around. Has anyone noticed something similar and had any luck solving this issue?

I've noticed this a bit, and what I discovered when I really worked with it is that if the cursor is already moving when you hit the right mouse button, mouse-look will not engage. Your cursor needs to be completely still when you hit the button and you have to make sure you're not over a UI element for it to work properly.