I have several folders set up in Tivo Desktop Plus (v. 2.8.2) for automatically transferring to my Tivo HD video files I place there. It works well, but occasionally, files that have been transferred to the Tivo, but not yet viewed, are transferred a second time. Why does this happen and how can I prevent it? It's not clear to me what mechanism Tivo Desktop uses to track transferred files. Is it possible that using maintenance utilities like Ccleaner to wipe cookies, etc is causing Tivo Desktop to lose its record of transferred files?