Hi everybody! I bought 6630 few weeks ago...everything was good but...maybe a week ago i bought Nokia HDS-3 headset. It's MONO...:/ I don't know why coz the headset looks like original hds-3...and it sounds silent. When i heard it i went to the shop where i bought my 6630. They told me "this headset is mono!" And then they gave me an other original nokia headset (but i don't know which...) And...it was a STEREO sound! So, what is the problem? This is hardware problem or maybe i have to buy a ad-15 adapter (tell me - it will work on my 6630 in stereo without problems??) PLZ help me guys!