I recently upgraded from the 8265 to the 3595. i was really happy with it and even reccommended it to a friend, who eventually upgraded to one as well. we've both been having the same problem... every once in a while it'll say NO SIM CARD or INSERT SIM CARD or somthing indicating that the card is dislodged or somthin. Anyone else with these probs? i've used my card in other phone with no problems. (nokia 7210, sony erricson ti....) other than this prob the phone is great! please help!