My Zumo 550 had not been used for a few years so I had the latest software update installed from Garmin along with the latest Garmin mapping. Now when using it the screen scrolls in jumps as opposed to constantly moving. Also I am past junctions before the map has reached them! Any ideas as the mapping cost me £55 so I would prefer to get use from it as replace it..
Any help greatly appreciated..
Any help greatly appreciated..