Acer Bluetooth

Question

Sorry to bring a problem of this nature to the group but maybe someone here has an Acer similar to mine . Do I need a bluetooth dongle to use bluetooth on my Acer Aspire 1691WLMi ? There is a button on the front of the laptop supposedly to switch on Bluetooth but when pressed there is a message onscreen saying ''No device''. Do I need to configure anything ? The computer is only a few weeks old but it is impossible for me to contact Acer technical at the moment. KF