Comment 5 for bug 1336824

I'd need more details then, the more the better. What distribution, desktop environment, calendar extension, etc. and what versions are you running? From the screen shot it looks like gnome shell and Onboard embedded in some kind of custom application, but I could be very wrong. I've tried to replicate your problem in Trusty's gnome shell 3.10.4 and couldn't reproduce it there.