Leslie, I'd think the only reasons you'd get "heading unknown" is because you are either not moving, or you haven't acquired a fix. Steve ----- Original Message ----- From: "Leslie" <lesliepeterson@xxxxxxxx> To: <gps-talkusers@xxxxxxxxxxxxx> Sent: Friday, October 05, 2007 11:23 AM Subject: [gps-talkusers] Heading Unknow I failed to understand why GPS always displays "heading unknown" all time. I want ot know what is ahead of my walking. If it is work but I do not want the displays tells me "hehind.....". I prefer Ahead only. Thank you if you help me. Leslie--