Drive does not show icon on desktop to communicate with. Drive has stopped receiving backups from Time Machine (Mac). The unit makes noise while turned off so I have to disconnect it from the elect receptacle. I have contacted the tech support of LaCie but I can't seem to get it through their heads that without an icon I can't perform various tasks like reformatting the drive. They have stopped communicating with me and are in-denial and silence hoping that I will go away.