I have 3 parallel panes in a single tab - ASV, KJVS, some GNT - it doesn't matter much. The point is that the number of columns is getting tight for the space on the screen - this is on my 15" laptop and the library is open and then two zones - one with these parallels, and another with, in my case NIGTC. Again I doubt that matters but it helps to restrict the available space. Now when initial setup up the headings are all like this image:
3parallelsGood.JPG 46.55KB 0 downloads
But then if I select the text in one of the parallel panes and change the text to some other text the display becomes fairly corrupted in the headings. See this image :
3parallelsBad.JPG 56.9KB 0 downloads
Note that it can take a couple of goes to get this on occasion though mostly its pretty immediate. Also just un-maximizing and re-maximizing the window causes a nice clean redraw.