I was installing a shelf above the one holding my HR21-200 and it's connected external eSATA drive. The drive is a 1 TB Hitachi CinemaStar in an Antec MX100 case. After I dropped the shelf, the drive started buzzing for about 2 minutes, but is now quiet. I ran the System Test from the Setup menu, but I don't know whether it performs any tests on a connected external drive. Does anyone know of any way to test the drive from the HR21-200, or do I need to disconnect and attach it to a PC to perform tests? By the way, the My Playlist shows the same percentage free, so it appears the HR21-200 still recognizes the drive is connected.