Thanks for all the great tips, guys, and sorry for falling off the radar. I really appreciate you taking the time to answer my question.
Reading about music theory is a great tip. The topic of scales is a bit beyond my current level, I'm afraid, but I'm going to keep that in mind when I - hopefully - make some more progress with the course.
The idea of a travelling guitar came as a surprise to me; I didn't even know they existed. It's so practical, as it's so small and easy to fit inside a decently sized suitcase. Did you pay much for it?
I got back from my vacation about three weeks ago, and have been enjoying some alone-time with my guitar now and then. 🙂
Today I thought I'd fire up the old DVD and go through Steve's lesson 4 videos again, and see if I am having any difficulty playing that stuff. I took a break from the course a few months ago, and have been using the book "Hal Leonard Easy Pop Melodies" since I find it a good companion source material for practicing the notes on the first five frets. Steve has recommended buying those books, after all. I now see why he did so.
The break from the course has done me good, I believe. It has been refreshing, which I needed after spending many months in session 4. My hope is that I will feel ready to move on to session 5 shortly. 🙂