I installed the version indicated. This appears to essentially resolve the problem, though not perfectly. hostip.info is back up today, but I tested Live Operator's ability to handle hostip.info being down by modifying my hosts table. Now, instead of blowing up, Live Operator displays "Loading" in the Country and City areas. There is no indication of any problem, and "Loading" never goes away. At least it's not blowing up now.
This raises a question. Every version of Live Operator that I have installed claims to be version 1.0.0.0. There doesn't seem to be any way to tell what actual version you have installed. I want to verify that the correct version of Live Operator is installed, how do I do that?