Mac Entourage 2004 does not display invites or add them to the Office calendar correctly when those invites are sent to us from anyone from a particular customers' office. THe customer states they use Windows Outlook 2010. I can receive these invites OK with Mac Outlook 2011. I can also send invites to our Entourage 2004 users from my Outlook and from a Windows Outlook 2010 from within our building and the invites come thru fine. Any one have ideas why the invites from that one customer do not display correctly? This prevents us from accepting the invites and the invites never make into our calendars.