Like I said over on bug 648618, I quite using evolution because of this. Unfortunately you can't apt-get purge evolution* if you want a clock on your desktop. So I wrote an app indicator so I could completely remove the leaky evolution stuff from my system: https://bugs.launchpad.net/ubuntu/+source/evolution/+bug/648618/comments/37
Like I said over on bug 648618, I quite using evolution because of this. Unfortunately you can't apt-get purge evolution* if you want a clock on your desktop. So I wrote an app indicator so I could completely remove the leaky evolution stuff from my system: https:/ /bugs.launchpad .net/ubuntu/ +source/ evolution/ +bug/648618/ comments/ 37