SD:/Garmin/JCV/D3048060A.JCV is correct for the jcv file, so it should work. Simulate a route, with GPS Simulator On, from (for example) 'Where To?'>Cities>Spell>London, London>Set Location>Back Arrow>Repeat for Manchester, LANCS>Go! When route is calculated and started, scroll thru the route watching the greyed out words 'Junction View' & when you get to the M1 they will go bright, press on the bright words and you will see the JV. There will be lots more on the route to Manchester. Nowhere near all intersections have JV, and they're mainly on major roads such as motorways etc.