I bought a nuvi 265wt from canda. I am now in chennai. When i loaded a sd card with India map, it does not read the sd card. when i connect the nuvi to my computer i can see t drives. it open tsh garmin drive but unale to open the sdcard. what can be the problem. Please help. I am from india nad will not be able to return the garmin back to the dealer in Canada. Thanks
