I just got a 500 gig ext HD. Called Dish, activated service, my 622 formatted the drive. I started archiving a few videos after about 5 mins of watching tv/accessing menu the activity light stopped and the 622 locked up. I had no choice but to do a FPR. When it came back up I checked and the files I was moving were still on 622, tried to start archiving again and it said I needed to reformat HD to dish spec. tried that and it failed twice. I noticed that while it was transferring content the 622 was very sluggish. Any ideas? I am going to try to reformat the HD with my computer (I run Ubuntu Linux).