Sounds like you have it running in Cache Mode, and have a problem with the Offline Address Book. Open the properties for your Mailbox Store and make sure an Offline Address Book is specified. Mark Fugatt Dedicated Supportability Engineer (Exchange) Microsoft Services Organisation Desk: +44 (0)118 909 5630 Mobile: +44 (0)7966 858108 MSN IM: markfu@xxxxxxxxxxxxxxxxx Blog: http://blogs.technet.com/mfugatt Dedicated to proactively supporting Microsoft's enterprise Customers Mark Fugatt - Exchange DSE This email may contain confidential information. If you are not named on the addressee list, please take no action in relation to this email, do not open any attachment, and please contact the sender (details above) immediately. Information in this email is provided in good faith. If you are a customer of Microsoft, please refer to the terms and conditions which cover the provision of support and consulting services to you/your organization. If you are not corresponding in the course of, or in connection with a Microsoft contract or program with its own terms and conditions, please note that no liability is accepted by Microsoft for the contents of this mail. -----Original Message----- From: nhuong pham hong [mailto:phnhuong@xxxxxxxxx] Sent: 15 October 2005 16:30 To: [ExchangeList] Subject: [exchangelist] Problem with Microsoft Outlook 2003 ? http://www.MSExchange.org/ Dear Sir/Madam, I Install Exchange 2003 with SP1 on Windows 2003 with SP1. users use Microsoft Outlook 2000/XP no problems but users use Mirosoft Outlook 2003 have erro as follow: Task 'Microsoft Exchange Server' reported erro (0x8004010F) : ' The operation failed. AN object could not be found. Can you help me! Thanks a lot NhuongPham ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: markfu@xxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx