We have recently noticed that when we make Calendar entries on our BlackBerrys (a combination of 8700s and 8310s), the entries are not being replicated in the outlook calendars. However, the process does work the other way round i.e. calendar entries made in Outlook do appear on the BlackBerrys. All other synchronisation functions seem to be working, as far as we can tell. We are using Outlook 2003, Exchange 2003 and BES 4.1.5.26. Can anyone suggest the reason and hopefully a solution? Thanks.