Hello, and thanks in advance for your time!
Earlier this afternoon, I noticed that the sound on my Thinkpad W510 was no longer working. I hadn't really done anything of note with my computer- just updated Adobe Reader to v9.2, that I can think of. When I checked the notification area, I saw this:
However, when I right click and click "Playback Devices", I get the following:
I immediately checked Device Manager, and found that everything appeared to be fine:
I tried uninstalled and reinstalling the Conexant and NVIDIA drivers, as well as updating BIOS. Nothing seems to help,
When try to use the mute/volume buttons on the keyboard, the speaker mute button lights up when pressed, but the microphone mute and volume +/- buttons don't appear to do anything. I've also tried plugging in headphones, and that does not make any difference. When I boot from an Ubuntu CD, however, sound works fine, so I don't think that it's a hardware issue.
Anything that you folks could do to point in the right direction would be greatly appreciated. Thanks!