Mac OS X 10.6.8 - Can't remove SohposUpdate Packages/Folders on Desktop

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http://serverfault.com – Every day a new "SophosUpdate" folder/package will appear on my desktop (see screenshot). When I highlight it my trash can turns into an eject button. When I drag them to the eject button nothing happens. Also nothing happens when I right click one of them and select "eject". The only thing that got rid of them once was starting up in safe mode but they keep coming back after that. Does anyone know what I can do? I'm stuck. (HowTos)