As a fairly new user I've just come across this problem of double highlighting of the Bar. It seems that there is, what I would call a 'page break' after a certain amount of bars. After this 'Page break' the highlight seems to double on down the page. This stops song scrolling at the bottom. I Hope somebody can help me with this nuisance.

Can you post a screen shot?

Yes, a screen shot of your BIAB chord layout would be helpful.

Here's a link that explains how to post screen shots.

http://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=386690#Post386690