I've got an XPS 420 and was wondering if it has built in bluetooth capabilities? I didn't order the Bluetooth keyboard/mouse set and my order manifest doesn't list Bluetooth, so I'm pretty certain that I don't, but according to the driver list and some of Dell's documentation the internal memory card reader on the 420 has built in Bluetooth capabilities.

Just to double check do I have a card reader without bluetooth, or is it disabled because I didn't purchase the bluetooth keyboard/mouse set? I'd hate to go out and buy a dongle and then find out that I didn't need to.