I had purchased two laptops from DELL.com through online having service tag no.40DX7N1 and 6FQF8N1.I had tried using the Bluetooth,but it was not working in one laptop having service tag no.When I took the laptop to dell service centre they found that the bluetooth device itself is not present inside the laptop.When I tried to contact the customer care the told they cant help me out in this regard and they didnt also respond properly..Can any body help out in this regard..