My Corseca (DM5710BT) Bluetooth headset received along with my Dell Inspiration laptop (Model 4110) is having audio problem.  At the first installation, the headset worked very nicely. After that whenever I connect the BT headset, my computer is pairing the device but for the playback I am hearing sound from my computer rather than from my headset.  My computer (window 7 Home Premium) is not recognizing it as an audio device.   It performs all other functions like rewind, forward, pause etc. but I am not getting audio from headset.  So for I did not install driver CD provided by the company. Any suggestion/help is gratefully appreciated.

Thanks