I have the Logitech Z-5500 Digital 5.1 Speaker and is necessary to install the MB of Sound Blaster Audigy software. I upgraded my machine to Windows 7 64-bit a few weeks However, the sound card is malfunctioning. Sound card: SIGMATEL STAC 92XX C - Major HD Audio

SIGMATEL STAC 92XX C-Major HD Audio Driver for Windows 7? I have not tested for output on speakers but a full duplex audio USB pod will probably cure the problem as well. If you are using Windows on a Mac (if Parallels or Bootcamp) you must use a USB audio device for microphone input. I would be grateful if you can help solve these problems of driver for cross-platform hardware/software compatibility. Same story with the built in isight camera. None of them work, saying the device is disconnected or found or not functional. I tried to install 3 different drivers made for Dell with the same audio card.

The ID of the salesperson, I found that the unit is SIGMATEL STAC 92XX C-Major HD Audio. No sound on Windows 7 installed on an iMac (SIGMATEL STAC 92XX C - Major HD) Audio

Sigmatel audio drivers win xp