Outlook crashes often after installing Norton Security Suite through Comcast. This is provided as part of the cost of using Comcast as my ISP. The error message is usually something like "Outlook has stopped responding. Check the internet for possible answer or Restart Outlook". I estimate it has crashed like that 10 times in the 2.5 days I have had Norton installed. Today I searched and found out how to turn off the Norton spam plugin for Outlook. (http://community.norton.com/t5/Norton-Internet-Security-Norton/norton-antispam-outlook-plugin/td-p/192887) This is how I found this community forum. Since turning it off (only 8 hours ago), there have not been any more crashes.
My system info:
HP h8-1070t computer with Intel Core i7-2600 cpu 3.4GHz
9GB RAM 64bit OS Win 7 Home Premium
Service Pack 1