Windows 7: Audio problem, Audio device is disabled.

I turned on my laptop the other day and no audio would play from anything, like youtube videos or itunes. I checked my volume control nothing was muted. When I opened itunes I got a message saying "itunes has detected a problem with your audio configuration. Audio/video playback may not operate properly". I tried to restart the laptop but had the same issue. So I went to the acer site and downloaded the audio driver for my laptop. Now the volume control icon has a red circle with a white x through it and says "audio device is disabled". I have a Acer aspire 7745g running Windows 7 64bit

Nobody?

Have you checked if the audio device is well installed and then configure. Try clicking audio and check where the problems is out from. And also check your speakers if the problem is from there. Or try to uninstall the audio drive and install it back again and check if the problem will stop but if continue then here or visit the link below to find the solution there thanks
No Audio Output Device Error | Techyv.com

When I run "dxdiag" and click the sound tab I get this: http://i.imgur.com/pltBO.png

that will be another problem but have you check the link i gave to you i hope you will find the solution there

Link didn't help