Tony...

I suspect people don't have ready access to a BIAB 2010.5 version to test your problem.

When you say "the bottom of the song cannot be viewed", do you mean that when you PLAY the song, and it gets to bar 58 (in your example), that it won't automatically show you bars 59 etc?

I just tried one of my songs (in BIAB 2014) in "minimized" mode, and it "jumps" to the bars below those displayed when the cursor gets to the bottom in PLAY mode.
If yours doesn't do that, I would contact Support and explain the problem.

If you just want to SEE all 87 of your bars on the screen while the song is playing (not sure why you'd want that), you can just go to Opt. > Preferences > Display, and try different settings for "Number of Rows".

Let us know if these suggestions don't work. We may need more info from you as to what exactly you're expecting.

Good luck!
LLOYD S