Unable to Manipulate Viewport

[Ceramic]

I hope I'm not missing something super obvious, but I can't seem to be able to rotate the viewport around in three dimensions.  I know that it should only be possible when the Gearhead Guy is located in the upper right.
I am familiar with CAD software... so I'm not a total newbie... but I am still missing something here.
I can pan (via RightMouseClick and Hold while Moving)  and zoom  just fine(Left Mouse Click on background and Scroll Wheel).
Other ways to Zoom= Shft+LftMouseClick while Moving Up and Down
Other Ways to Pan= Ctrl+lftMouseClick
I can use the Arrow Icons to get static views of the gears from other perspectives, but no ability to do more than that.
I watched the Tutorial #1 on Art's Youtube channel and I watched him do it, but no mention of how.
It could be that there is an issue with my system and the last two versions of Gearotic V2 Stable and most recent V2.008. I have tried both with the same results.
Any thoughts.
:)

[ArtF]

Hi:

Press "Shift-Ctrl" and move the mouse, or press the middle mouse button and move the mouse. Either should
give you full rotation.

Art

[Ceramic]

Art,
Thanks....
Sorry for the delayed response. That did the trick of course. 

p.s. I am really enjoying the software.  Money well spent! thanks

[ArtF]

Always glad to hear such comments.

Thx
Art