Hello. I am relatively new to Zbrush. I have Used Sculptris mostly, but Zbrush is the best.
First, I work with the mouse. I don’t use tablet. When I am in Sculptris I rotate the viewport camera around the mesh, I zoom , I pan , I do everything without any problem. But when I open Zbrush , when I try to rotate the viewport camera everything tilts very bad. I mean its not when I move the mouse horizontally the viewport camera rotates around some vertical ax and when I move the mouse up and down the ‘viewport camera’ rotates around some horizontal ax. I tried a lot of things but nothing helps. I want to rotate the camera just like in sculptris with the mouse (when I stretch the mesh and when I pan to different parts, the camera to rotate around the local “mesh’s center”.
Thank you in advance 

It is a problem if you can’t get the files where needed. It will not work.