The fact that you do not get a new position on your map when searching can be due to a couple of different factors. The most common reasons we ask you to check are:
Is the GPS unit switched on?
Is the battery charged?
How is the coverage where the GPS unit is located? If you find that all of the above is in order, we recommend that you restart the GPS unit and test again. If the new positioning fails even then, please contact our support department.