Caty's suggestion is right imo. That's the only logical explanation if you are sure you have made the cure correctly using both methods and not slipped up in either process, which is why it said to do the cure3 again as well as the other cure. Make sure you clean your PC first with all usb drives disconnected, not just the nuvi, because if you have the conflicker or similar trojan it may be on anything else you had connected via usb as well as the nuvi. I've had it on a mircodrive and it was a bitch to get rid of. Follow Post #27 to the letter and it should work. Check all your other usb devices as well because one on them is probably the source.