I have "City Navigator Middle East & Northern Africa NT 2014.30" on my nuvi 3490, and it is working very well, search very fast.
Once I replaced gmap3d.img, gmapdem.img, gmapprom.img, *.JVC, *.G2S by the new files her "City Navigator Middle East & Northern Africa NT 2014.40", it became very slow in search!
Am I doing something wrong, or missing something?

Please help.