QTR-Quadtone RIP

I don't know that this is specified in the update instructions from Roy, but I first used the 
uninstall utility to remove 2.5.

I moved all the profiles I had made into a separate folder, saved on the desktop for 
convenience.
Then ran the uninstall utility for 2.5 (I am on Leopard)
Then installed 2.6
Then removed all the stock curves that I know I will not be using, and added my curves to 
the folder for my printer. (2200)
Then ran the install 2200 utility in the folder for the printer.

Opened Photoshop and printed a test.

Worked like a charm.

David