Outlook runs slow when switching between messages
If you are using Outlook with the "Preview Pane" turned on AND you have MSN Messenger 5.0 or greater installed, messages can take several seconds to appear when you switch between them.  To work-around this, you must turn off the IM integration of Outlook.
In Outlook, click TOOLS/Options
Uncheck the "Enable Instant Messaging in Microsoft Outlook" checkbox.
Click OK twice.
Click FILE/EXIT (or FILE/EXIT AND LOG OFF in Outlook 2000)
Restart Outlook.  It should be back to its speedy self again.

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