Hi Pior,

Thanks for telling me about the OS and hardware details of your working setup. It sounds like I should try using my tablet with a Windows machine. I also rented a Cintiq to see if it's an issue with the Huion specifically.

It sounds like the problem you've seen with a Macbook Air and Logitech mouse is only for scroll zooming and that you haven't had a problem with pan or rotation like the upper GIF here:

http://moi3d.com/forum/index.php?webtag=MOI&msg=10818.11

Is that right?

- Peer