Outlook 2007 February Update
The Outlook team has posted an update that should improve reliability and performance. Here's an excerpt:
"This update contains a significant number of new performance-focused improvements for Outlook users. We especially focused on the areas of starting up and shutting down Outlook, switching between folders with large numbers of messages, calendar reliability and consistency, and general responsiveness of the application when performing common tasks around managing your e-mail, calendar, and other information..."
I'll say this, Outlook does close faster. You can read the blog and download it from here:
http://blogs.msdn.com/outlook/archive/2009/02/25/announcing-the-february-cumulative-update-for-outlook-2007.aspx