This bug is still present on ubuntu 14.04 LTS, I can't guess how to trigger it, but it does frequently.
** Attachment added: "Menú_018.png" https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1047473/+attachment/4262953/+files/Men%C3%BA_018.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to indicator-sound in Ubuntu. https://bugs.launchpad.net/bugs/1047473 Title: Rhythmbox play button has an odd square around it. Status in “indicator-sound” package in Ubuntu: Expired Bug description: There is a an odd light square appear around the play pause button in the sound indicator. please see video. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: indicator-sound 12.10.0-0ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3 Uname: Linux 3.5.0-13-generic x86_64 ApportVersion: 2.5.1-0ubuntu4 Architecture: amd64 Date: Fri Sep 7 16:37:09 2012 InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120830) ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: indicator-sound UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1047473/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp