I have an Inspiron one 2320 running on Windows 7 home premium. the computer is about 1.5 year old and I never tried to use the microphone until last night. It didn't work. I open the control panel, check in the sounds setting, ran diagnostics, updated drivers and everything else I could find information on. When I searched for help I found a lot of people having the same problem, I was hopping that some kind of correction have been made because the problem is old enough, but not such a luck, I called technical support and they refused to help me because my warranty have run out. I believe that is a defective product issue and therefore still the responsibility of DELL, and Microsoft if there are issues between the microphone and Windows 7. Any help is appreciated, because the frustration level is pretty high now.