Comment 192 for bug 631395

Hmmm. It still works for me...

Here's some info on my install

~>apt-show-versions | grep evo
evolution 2.30.3-5 newer than version in archive
evolution-common 2.30.3-5 newer than version in archive
evolution-data-server/maverick-updates uptodate 2.30.3-2ubuntu2.1
evolution-data-server-common/maverick-updates uptodate 2.30.3-2ubuntu2.1
evolution-exchange/maverick-updates uptodate 2.30.3-0ubuntu2
evolution-indicator/maverick uptodate 0.2.10-0ubuntu1
evolution-plugins/maverick-updates uptodate 2.30.3-1ubuntu7.3
evolution-webcal/maverick uptodate 2.28.1-1
libevolution/maverick-updates uptodate 2.30.3-1ubuntu7.3
mail-notification-evolution/maverick uptodate 5.4.dfsg.1-2.2
tracker-miner-evolution/maverick uptodate 0.8.17-0ubuntu1

The "newer than version in archive" note is because we did dpkg --install on those debs.
Note that I DO NOT have the experimental plugins. I don't know if this makes a difference.

Have you tried the --offline trick since restarting?