Hugin, great with strange errors...

I love hugin (http://hugin.sourceforge.net/) -- it does a great job of stitching pictures together to make a panorama.  I ran into a weird problem -- i kept getting "unconnected image group" errors.  I tried setting the control point generators (not strictly need in the latest version) but each reported "Configured, not installed".  Strange.  The problem turned out to be that i installed hugin in a subdirectory of /Applications on my Mac and it didn't much like that.  Moved it to /Applications and all was well...

Here's an example panorama from photos I took at Canyonlands National Park outside of Moab Utah.