Trek420 and Muirenn, I thought I'd raised the saddle enough last week but at your suggestions I decided to go higher today. So, adjusting it three times, I went up about an inch and now it feels great and no more sore knees! Thanks!
Sky King, the lower handlebars felt good and didn't create any soft tissue problems.

I suppose it's not unusual to start riding and want to try new equipment. I'm still entertaining that road bike idea