people swear by them, saying there awesome,

Been down south today, Warwickshire
Sat-nav got me down there Fine,
stopped at destination, had Brew and set back off home,
tom tom just went into lock down mode,
this is the 3rd sat nav ive used and all have been a failiure also inoticed whilst the sat-nav was in use the Radio in the Citreon was useless all fuzzy and loosing stations (weird)
at one stage the sat nav told me iwas 13000 miles away from home,
are all tom toms temprimental or is it just my bad luck ?