1. My macbook refuses to sleep without the use of pleasesleep, however, this application doesnt work well for me because I run Itunes quite a bit and it tries to sleep with it running and if I use an exception it will never go to sleep cause I like keeping Itunes running. 2. Iturnes Artwork Screensaver just refuses to work, always comes up that iturnes artwork is not findable. Either one of these problems solved would be a huge help.