GPS devices need to download an almanac the first time they are used. This is automatic but you should leave the GPS unit outside and powered up for 15 minutes before attempting to connect to it. If you try powering up for the first time inside, then the GPS unit may close down and require even more time to get going as it will have to go into cold start mode. This also applies if you move to a different country. Don?t try using your GPS device until you have given it time to download a new almanac.
