I installed this plugin as per directions, but when I start SU, I get the following error msg:

Error Loading File bootstrap_Curviloft.rb
uninitialized constant Curviloft::T6Error Loading File CurviloftAlgo.rb
uninitialized constant Curviloft::T6Error Loading File CurviloftCurveMover.rb
uninitialized constant Curviloft::T6Error Loading File CurviloftPalette.rb
uninitialized constant Curviloft::T6Error Loading File CurviloftTool.rb
uninitialized constant Curviloft::T6

When I run this plugin, the first two features work fine (loft junction between spline surfaces and a given path.

When I try Skinning of shapes, I select the two edges. But when I click to validate contours, nothing happens. Click for transition also doesn't work.

All the files in my Plugin Folder appear to be as prescribed. Any thoughts?

With a 3-button mouse, I'm supposed to be able to move between navigation tools (Orbit, Pan, Zoom) using just a combination of the mouse wheel and left button, but it doesn't work. I must always select the Orbit tool from the toolbar, and then use the shift key to Pan. Then I must go back to the toolbar to reselect the tool I was originally using, (e.g Push/Pull).
I'm fairly certain that when I first started using SU, the mouse reacted properly, but now it doesn't. Could it be because I moved up to the Pro version?