i have problems connecting my samsung mobile x620 to pc to acess airtel mobile office using data cable please help me i have windows xp genuine,installed samsung pc studio and internet acess still it gives the error 777 0r 672 hardware problem in modem while with airtel live settings in my mobile i can connect to the pc and modem works fine please help me in this regard using airtel mobile office i have tried airtel and samsung help line but its of no use please send me the mobile settings and comp settings