So... SATNAV.

I had been getting annoyed with satnav. For some reason I thought it could work offline?!

When searchng for a desination it has to be online. However, once the route is found, leaving it online seems to confuse the hell out of it and it constantly tries to recalculate the route whilst travelling:?? At the moment, I have to go online for it to work out the route, then take it offline to navigate to stop it going mental.

I thought that once you have the map it didnt need to go online at all? hence avoiding potentially costly data charges overseas by downloading the maps upfront?

Or have I got this totally wrong?

I'm surprised at the issues when leaving it online also, anyone else have this?