[Koha] Runtime Error on patron name search with new KOC

I fear I'm being dense with the new Offline Circulation program. --It appears to install successfully on XP, Vista, and 7. --I create the borrowers db with the sqllite3 switch and copy it to the PCs. --The app opens fine... but when I go to search for a patron, the menu pops up, I enter the name, click the search button and I get Runtime Error! Program.....\KohaOfflineCirculation.exe This application has requested the Runtime to terminate it in an unusual way. Pleas contact the application's support team for more information. What am I missing? Btw, the older version works fine on all of our PCs. Any help appreciated! :) Richard vokal