I have figured the face book problem out, if I want to post the map I have to open the map, click on edit activity and change the privacy setting to everyone, this is only necessary on some occasions not all.
Just out of interest last week my Garim actually seemed to be recording stairs climbed in a more accurate manner around thye 80% mark, was getting excited as I thought Garmin may have sorted the software out. However this week it is worse than it has ever been, yesterday climbed one set of stairs which is absolute nonsense. Has anyone else had the same issue?