Normally when I use the Text Comparison tool in the PC version, it remembers the Bibles I used before. The Mac version doesn't, so I have to re-enter them. Problem is, if I try to enter them all at once, it does weird things - drops versions I entered, repeats versions (at least in the version field), etc. If I type them one at a time, then run the tool, then type the next, etc, it lets me enter them all.
