Thanks to Dan for posting a fix to the Outlook crashes that many people have been experiencing. It all turned out to be Cloudmark ..here's the fix.
In Vista, go to C:\Users\[Profile Name]\AppData\Local\ and rename the Cloudmark folder to Cloudmark.bad.
In XP, go to C:\Documents and Settings\[Profile Name]\Local Settings\Application Data\Cloudmark and rename the Cloudmark folder to Cloudmark.bad.
Then start up Outlook and you're good to go. You do not need to uninstall or reinstall Cloudmark.
UPDATE:
In order to preserve your whitelist settings, you'll want to copy 2 files over from the old directory to the new directory.
- Close Outlook.
- Copy the files cdol_firstunblock.dat and cdol_whitelist.dat from your old \Cloudmark.bad\SpamNet directory to your new \Cloudmark\SpamNet directory.
- Restart Outlook.