Hi, And another followup... I put a set of scripts online: http://www.ccpn.ac.uk:9080/ccpn/data-model/version-1-0-to-1-1-scripts-to-change-code that can help you change the code over from 1.0->1.1. They're really only useful if you have a lot of code, and the changes the scripts make are incomplete, but they can help you in the transition. Wim