I am working on a Explorist 210. When powered on it displays "Unit Currently contains no maps initiating map up load " From that point nothing happens? you can not even turn it off . I acquired a data cable for it and it still dose not do anything. Any info on the web sends you to a Russian web page (http://rhamphorinkx.newmail.ru/ ) that does not help at all. The date cable connection may be in the wrong setting but there is no way i have found to get in to check it . My Garmin's never give a problem. anyone have any idea ?? -- Patrick Brown PANDA77 http://www.sycsrt.org T.E.A.M = Together Everyone Accomplishes More