Never did make a warranty claim. Had too much confidential on my HD and couldn't give up the computer for the return to Lenovo service center required. So, I have lived with it using a plug in microphone.
Serves as a lesson to us all. Always, always try ever feature of your new computer immediately after buying, even if you have to borrow a peripheral device in order to do so.
Lenovo Y410 59-011897, Core2Duo T5450, Intel 965GM, RAM 2GB(667), HDD 160GB/5400rpm, Graphics Onboard GMA X3100, ODD DVD-RW, Intel Pro 3945ABG, 6in1 reader, Modem Lenovo support 56k Fastlink data/fax, Device Mgr. Motorola SM56 data fax (driver 126.96.36.199), Audio Lenovo support Intel Azalia, Device Mgr. Realtek HD Audio v. R1.83 (driver 188.8.131.5223), Vista Home P
Some people can at least use an external mic! I use an N100 (0768). The audio device is SoundMAX. The mic doesn't work, internal or external. It's my first laptop where two devices are shown - one for playback (HD Audio 0) and one for recording (HD Audio 1). The Properties button for the mic is inactive (grey) and in the volume options it's shown as disabled. Is it even possible that only the mic is defective and the rest of the audio device is OK?