QTR-Quadtone RIP

Several weeks ago I decided to upgrade to the latest and greatest
version of QTR, 2.6.1.  There were no new features that I could use
but why not have the latest, what could go wrong?  2.6.1 can print but
gives me the following error message when I run Drop-Quad-Profile on
my mac.

/Applications/QuadToneRIP/CurveDesign/Drop-Quad-Profile.app/Contents/Resources/script:
line 17: quadprofile: command not found

so I decided to uninstall 2.6.1 and go back to 2.5.2. 
Drop-Quad-Profile works just fine then but I can't print because the
the print driver can't find the printer.  I have done back and forth
between 2.5.2 and 2.6.1 several times and nothing changes.  I realize
now that I might have mixed the uninstall/remove program between the
two versions and I can see how that could mess things up.  I've gone
back and done it right, using the 2.5.2 uninstall with 2.5.2 and the
right on for 2.6.1 but things are still messed up.

What now? Should I take up color? perhaps painting?

How can I wipe things clean and start over?

Thanks for the shoulder to cry on.

DDeloof