Extra camera rotation

Hi
Can anyone answer to this?
http://forum.unity3d.com/threads/92116-Extra-Rotation-on-Camera

Many thanks!!!

OnMouseDown() and buttonRightRotation() are never called, based on the code you’ve posted… which means it would never work.

The second script is attached to a gui texture and it works when I switch off the first script(called “RotateCameraZoom” and attached to the camera)for some reason…maybe there is a conflict between the 2 function in the first script…
Should I use a different methodology?