I just got a new WD my book external 1TB drive. Unplugged dvr, plugged in esata cable and pwr to hard drive. Plugged dvr back up and the lights on both the dvr and HD blink on and off, dvr goes thru self tests, checking sat settings, then comes back normal. When I go to the recorded list is still shows there is only 9% remaining. Is there a step I am missing? Could not find any instructions in my dvr manual.