For those of us with Microsoft Outlook 2007 there is a somewhat hidden but very effective update available from Microsoft. The update information is available from KB933493 but essentially the update fixes an issue with large PST or OST files that can slow Outlook to a craw when changing between folders composing or replying to messages. The download page is directly accessible from here
For those of us with Microsoft Outlook 2007 there is a somewhat hidden but very effective update available from Microsoft. The update information is available from 
