Just upgraded my Nexus to 4.2 and the .wav links in the gmail-emails no longer play. It seems my phone is trying to do something for a second but then nothing happens. Before I did the upgrade to 4.2 the .wav and .mp3 links would play. I'm hoping the fix is something in the settings where I have to tap a build number or something 7 times but I just don't have the time. Somebody here have a solution? It's a google samsung nexus 3 bought from the playstore running on the net10 provider if that is of any help. Thanks.