We have a fairly new problem on 3 notebooks and 2 desktops. All are equipped
with Windows XP Pro and either Outlook 2003 or 2007. Browsing through emails
causes delays, sometimes of up to 6 minutes or more to display an item in
the preview pane. All mail items and attachments have been downloaded and
previously viewed. The delays are random - some items display quickly,
others seem to take forever. It doesn't seem to based on mail or attachment
size. I have disabled Symantec antivirus and PestPatrol but the problem
persists. Outlook doesn't crash - if you wait long enough the message will
be displayed correctly.

All machines have the latest Windows and Office updates. As this issue has
occured within the last 45 days or so, I wonder if it's an update that's the
culprit.

Any advice is greatly appreciated.