Russ and Others,
I am using Windows 7, Internet Explorer 11 and http://www.redhotpawn.com.
I opened up a game window for my game with macnumer. I selected Analyze Board for that single game. After the Analyze Board came up, I tried to make the game board smaller in size by pointing the mouse pointer on the right side slide bar of the game and using "CTRL+ the mouse wheel" to resize the game window to a smaller size. After I did, I saw the smaller slide bar to the right of the game like I wanted to see instead of the larger slide bar constantly popping up and getting in the way of being able to choose the smaller slide bar.
By chance, I found that this method of making the game board smaller in size solved my problem. Now the larger slide bar to the right of my game in Analyze Board mode doesn't appear in the way of the smaller slide bar to the right of my game so that I could easily go up and down the moves list with the smaller slide bar via the mouse. Therefore, my problem seems to be solved.