Happened to me. My guess is the wild e-calendar-fact(ory, I suppose) which make dbus and the indicator applet spin like crazy. As you can see in the attached screenshot, the indicator-datetime applet do not show anything when clicking...
** Attachment added: "screenshot with "top" during the problem" https://bugs.launchpad.net/ubuntu/+source/indicator-datetime/+bug/774071/+attachment/2140010/+files/Screenshot.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/774071 Title: Indicator-datetime-service renders 100% CPU usage -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs