amount of network traffic when you browse maps, createroutes, or search for locations online.Almost all digital cartography is inaccurate andincomplete to some extent. Never rely solely on thecartography provided for use in this device.To prevent the device from automatically downloadingmaps through the internet, for example, when you areoutside your home cellular network, select Options >Settings > Network > Use network > Off.To receive a note when your device registers to a networkoutside your home cellular network, select Options >Settings > Network > Roaming warning > On.Contact your network service provider for details androaming costs.To adjust the size of the cache that is used for saving mapsor voice guidance files, select Options > Settings >Network > Max. memory card use (%). This option isavailable only when a compatible memory card is inserted.When the memory is full, the oldest map data is deleted.The cache cannot be emptied.Nokia Map LoaderNokia Map Loader is PC software that you can use todownload and install maps for different countries from theinternet to your device or a compatible memory card. Youcan also use it to download voice files for turn-by-turnnavigation.To use Nokia Map Loader, download it fromwww.nokia.com/maps, and install it to a compatible PC.You must use Nokia Maps before using Nokia Map Loader.Nokia Map Loader uses the Maps history information tocheck the version of map data to be downloaded.1. To download maps or voice guidance files with NokiaMap Loader, connect your device to the PC with acompatible USB data cable.2. Open Nokia Map Loader in your PC. Nokia Map Loaderchecks the version of map data to be downloaded.3. Select the maps or voice guidance files you want toinstall to your device.Satellite informationThe indicator is shown on the display when youbrowse maps. When the device tries to establish a GPSconnection, the circles are yellow and the icon is blinking.When the device receives enough data from the satellitesto calculate the coordinates of your current location, theicon stops blinking and turns green.To check how many satellites your device found andwhether your device is receiving satellite signals from thesatellites, select Options > Map options > Satelliteinfo.If your device found satellites, a bar is shown for eachsatellite in the satellite information view. The longer thebar, the stronger the satellite signal. When your device hasreceived enough data from the satellite signal to calculatethe coordinates of your location, the bar turns black.Initially your device must receive signals from at least foursatellites to be able to calculate the coordinates of yourlocation. When the initial calculation has been made, itmay be possible to continue calculating the coordinates ofyour location with three satellites. However, the accuracyis generally better when more satellites are found.84