Hi list, Currently, my CalendarServer provides different data of the same calendar for different clients. I migrated Calendar Server from an old server to a new one and migrated the datas. Everything worked fine before the migration for everyone. They all use the Thundebird module, Lightning. Now, different clients have different versions of the same calendar. If they install Sunbird, it retrieves the good events. I tried accessing to the calendar directly with their uuids, the problem is the same. I think the problem is on Lightning side, as it maybe have some sort of uuid or data cached. But i'm note sure, and I didn't fine anything to resolve the problem. I tried renaming the profile, so TB created a new one but the problem persist. Does anyone have an idea ? -- Bastien Semene Administrateur Réseau & Système Cyanide Studio - FRANCE