SolidWorks 2009 Mouse Help

I am having problems with my mouse on Solidworks. The middle button has not been working as the rotation between the x y and z axis.

Can anyone tell me what to do? Is there something I have to change in the settings?

Thanks.

Is this a wireless mouse?

Your mouse might be configured to use the third button as a system wide “scroll button” instead of “button 3”.

Looks like O’Sancheski
is gone, but I ran into this same problem with my wireless mouse. Worked for everything else so I never suspected -
the battery was getting low. Fresh battery solved problem.