I am using MBAM free. Have done for quite a while with no problems. I run it manually. Until the last update. This time it fouled up. Would not load and I got the "send report to Microsoft" window up. I am running XP Pro SP3 but not Zone Alarm. I am running Norton Internet Security 2012 though. After deleting the new updated version and re loading it twice I have reverted to an older version which is running fine. I just ignore the request to update the program but did update the definitions. I thought it was my clunky PC causing it so I was relieved to see there are other instances of this duff update.