So I searched the forums looking for an answer to this but I couldn't find it. I experienced the strangest thing with my Gnex today. And I'm sorry if this is a little long, I just want to find out if anyone else has experienced something similar to this and/or an answer to the title of this thread. I usually have the "touch sounds" on under the sound settings. But randomly in the middle of the day those sounds went away, and my keyboard didnt have the audio feedback either. I of course looked through all of the settings to make sure the volume was turned up and that those touch sound settings were checked. I won't lie I kind of like the audio feedback I get when pressing a button. So when I noticed it wasn't there anymore I was a little disappointed, but that wasn't the biggest problem that I was having. Any app that uses my media volume was affected by this I tried google music, youtube, and the like but there was no sound being played. I found this odd because my ringtones and notifications were still working fine. The touch sounds and media sounds would come back from time to time, but only for periods of time shorter than a minute. Whenever they did come back my phone was lagging worse than anything I have ever experienced on this phone so far. I did end up doing a factory reset, but after that it didn't end up fixing this problem. A few hours ago the sound has come back to my phone all on its own without me messing with anything. Now this gets me to my question, as I am pretty worried that there could be something wrong with the hardware in the phone I have. I want to keep it and see if this problem comes back. But I don't know how long I can wait before I am no longer able to exchange it for a new Gnex. I am on Verizon and I got this phone on 12/15.