With the Text Comparison tool set with Biblical Dead Sea Scrolls and BHS, when I scroll past Isaiah 2.3, Logos 4 hangs (get the "Not responding" message at the top left at intervals), and I see my memory usage increase continuously. This happens on two different computers (i.e. repeatable). I manually terminate the program, but it does not produce a crash log. My computers are running Windows 7 64-bit SP1, one with 4 GB and the other with 8 GB of RAM.
With the Text Comparison tool and Biblical DSS only, the issue does not occur; only when I add BHS to the comparison and scroll to the vicinity of Isaiah 2.3 or 2.4.
I've seen something like this before, where memory usage increments continously. Logos has never officially replied.
I have posted the following screenshot and the logos4 file:

File: 0525.Logos4.log
I'll let Logos 4 use up all memory and let it crash. If there is a crash file, I'll post it.
David
Edit: I changed the title of this post, since my issue may not be isolated to 4.2a SR2, but rather to the tool and some combination of resources.