SOURCE: NO AUDIO OUTPUT DEVICE IS INSTALLED
I experienced the same no audio problem after Ultimate upgrade. Here is how I solved it.
Computer type: Dell Inspiron 1501 (Laptop)
1. Open internet browser. (in my case Internet Explorer)
2. Click on Favorites
3. Click on DELL
4, Click on Support.Dell.Com
5. Click on Drivers & Downloads
6. Click on Choose computer model
7. Select product model ( laptop, desktop....)
8. Select product model (in my case Inspiron 1501)
9. Confirm selection
10. Select operating system (in my case Vista)
11. Under category, select Audio.
12, Under downloads, select SIGMATEL-DRIVER STAC92XXX C-MAJOR HD AUDIO.
13. Select RUN.
Note: The computer went through the process of downloading and re-configuring the audio drivers. About half-way through the download, the red circle dissappeared from the speaker icon on the task bar. The computer re-booted and the audio returned.
I hope this helps.......Pete
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