This is really annoying me. I have a 500GB HDD connected to the USB port of my TC. I use it as a network drive for dumping pictures, music etc. on when I'm on the web. Trouble is it's a Hitachi Deskstar (SATA 3) and it has the built in auto park / auto sleep feature. It's in a powered caddy and has no jumpers on it so it is what it is. In use it works fine, but leave it idle for a few minutes and I get the "Connection failed" warning on my MBP, MBA. Short of replacing the drive, is there any way to disable the message popup? It works fine, so don't really want to buy another drive if I can help it.