TT got me to pull in my fangs. Day I post this - they finally FIX the problem. (and It was fixed before I posted)\r\n\r\nSo, I'm shutting down the thought of a CALS.\r\n\r\nBut I was very peeved. The XXL540TM is now working fine.\r\n \r\nTomTom's website manuals located at: [url=http://us.support.tomtom.com/app/answers/list/c/2485]Find Answers[/url]\r\n\r\nNow TT's pdf manual for the XXL550TM does give instructions for various functions which the device does not do.... But - I don't own one...\r\n\r\nDavid.