Thanks for the reply. Here what happened:
1. Open your file explorer on your phone to the "HanDBase" directory found at the root level of the microSD card.
Not sure what difference this makes, but you might want to look at my post from July 31 "DB location on Smartphone". With my Atrix the DBs are not on the micro SD card, they are on my phones internal storage. So I am conducting this test from the internal storage.
2. All of your HanDBase databases are listed there. Select and move them to a different folder of your choosing.
I renamed my HanDBase directory to HanDBase-back, so I now do not have a HanDBase directory on the phone.
3. Exit your file explorer, and try to open HanDBase. Does it open successfully?
I opened HanDBase and created a temporary DB and exited HanDBase. This created a new directory (in my internal storage). I then copied a DB to this newly created directory. I actually found one, of about 10, DBs that actually appeared to work without getting the white box. Interestingly enough, when I did a DBSDync even the one that was working now has gone back to the white box issue. Additionally, in the process doing all this the HanDBase app aborted a few times (I reported the incidents via the phone to you guys).
Bottom line is that it sort of worked temporarily, but has reverted back to the initial problem. At this point I have not done a factory reset, but I am willing to try that too as a last resort. Please let me know if I can supply any additional info.