I tried a variety .. including an episode of "Viking" which i'd had no trouble with before. Also tried episodes of "Rectify" and "Grantchester Christmas special" I 've since installed utorrent and after searching found "Grantchester " and am now downloading it with no problems. So is the problem with Vuze itself and its limited number of torrent providers? I've used Vuze for years and have never had 503 messages before(had to painfully find out what it meant!) .. and now I get them at nearly every attempt to download. Please answer in simple language .. I am really learning by doing here! Very grateful for any help.