Hi Jeff,
Thanks for the reply, but everything seems to be working OK now after reinstalling. I really do believe I screwed up on the first attempt, so now all is well. I ran my test image through PKS-1 again and then PKS-2. Little difference, except that in certain areas there was a slight bit more hallowing in PKS-2. Almost negligible though, so I'm good with it and I really like the new UI and the level of automation involved. I use it mostly for output sharpening, so I haven't tried the other two modes yet. Definitely a very worthwhile upgrade!
Thanks again,
Gary