We've been making continual minor improvements to Optiscan, fixing some issues with cut and paste and handling of certain types of addresses. Unfortunately a serious bug slipped into release 1.8.2, which hit the App Store yesterday. Apple helped us immensely by fast-tracking approval of version 1.8.3. If you are seeing crashes in Optiscan today, check if you are still running 1.8.2. If so, check the App Store for an update! (It may take up to another couple of hours till it's fully propagated through their distribution network.)