Reply To: No more zooming or panning

Restarting / rebooting makes no difference.

This might be important:  When I rotate (alt+left button), everything rotates around me rather than me rotating around something.  That would seem to be very important.

The problem appears to be file specific; when I open the latest iteration of the rocket project I can’t zoom or pan.  When I press shift+alt, it says “Pan View” at the bottom but “Pan View” disappears when I depress the left mouse button.  When I press ctrl+alt, it says “Zoom View” at the bottom but “Zoom View” disappears when I depress the left mouse button.  ctrl+left mouse button works normally.

When I start a new project there is no problem.

Therefore, it must be a setting that I accidentally modified (blender seems to have a lot of those).  

I have a suspicion it might have something to do with one of the 8 icons in the upper left corner of the viewport, but I don’t really know.  Suggestions?