When the client is in cache mode they are using the OST file, this would apply to both desktop machines and laptops, if you delete the OST file on a laptop before they have had chance to sync with the server then any changes they had made will be deleted. Cache mode does not need to be disabled if the user is working offline. Mark Fugatt Dedicated Supportability Engineer (Exchange) Microsoft Limited 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 ________________________________ From: Anita Birley [mailto:ABirley@xxxxxxxxxxxxxxx] Sent: 20 January 2006 15:41 To: [ExchangeList] Subject: [exchangelist] OST files question http://www.MSExchange.org/ Outlook 2003 and Exchange Server 2003 What's the difference in the OST file and sychronization when a person is using cached mode vs actually working offline on a laptop? Cached mode is set by default and the OST is created automatically. We are getting a lot of calls about sychronization error messages and have been deleting the OST file to resolve the issue. So far the calls have been for desktop machines, but if we delete the OST on a laptop and the user has been actually working offline while traveling, we will wipe out all their hard work, right? The same will happen if we rebuild the OST, right? Does cached mode need to be turned off on a laptop if the user works offline? Thoughts, suggestions, ideas, etc. etc. ??? Thanks! Anita C. Birley A+, Net+, MCP Help Desk Analyst ABirley@xxxxxxxxxxxxxxx Lotus <mailto:ABirley@xxxxxxxxxxxxxxx%0bLotus> Notes and Microsoft Office Support ------------------------------------------------------ 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 info@xxxxxxxxxxxxxx