I have an Exchange server 2007. When users add items on the calendar in OWA the items are fine. When the users open Outlook 2007 with Cached mode turned off thye see the calendar items. If they then close Outlook 2007 and turn on Cached Mode then the items entered in OWA disappear. If I use an old version of Outlook (2002) everything seems just fine. This is happening with mulitple users. on mulitple pc's. All using a newer version of Outlook..