[ubuntu] Trash Icon Gone...

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http://ubuntuforums.org – Sorry guys if its a repost. I am new to Ubuntu, using Ubuntu 12.04. What happened is that i right clicked the trash icon, clicked the icon and changed it to some icon i downloaded from internet. After changing it, i realized that i does not work properly. I since yday, i have been trying to change it back to the default icon. I deleted the downloaded icon and now it shows just a white icon. (attached). I am using Gnome Shell and selected icone theme is Unity icon theme. I have already tried trash properties, click in icon, click revert. No good... Attache (Hardware)