HP 15-b109eo Ultrabook sound cuts off suddenly

Hello,
I have week old HP 15-b109eu Ultrabook and when im on skype or on adobe connect the sound cuts out all of sudden. the mic doesnt work either and no matter what i do (take the headset off and put back), see if anything is muted etc nothing changes until i restart the computer. When i look the sound settings both input and output look like no life there and when i click the speaker picture on toolbar skype etc have this square after their names. What could be the problem?

Have you tried the Windows audio FixIt?
http://support.microsoft.com/mats/AudioPlayback/
Try that and let me know if it helps.
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HP 15-b109eo Ultrabook sound cuts off suddenly

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