If you are already using using and there is indicator-applet in your panels click on the envelop looking icon and see there is Microblogging entry that is gwibber and if you close gwibber it will minimize to indicator-messages.
If you are already using using and there is indicator-applet in your panels click on the envelop looking icon and see there is Microblogging entry that is gwibber and if you close gwibber it will minimize to indicator-messages.