I have the gm ios6 loaded on my phone. Everything works fine, except i do not have sound coming from my notifications. Well at least some of them. For instance, chase, foursquare, facebook and a few others i get no sound when a notification comes in. But for words with friends, text msg, voicemail, and other games i get the sound when it comes through. Anyone else experiencing issues with sound notifications? I have reset everything to factory settings, reinstalled the apps etc and no luck.