This is the first "issue" I have had with my iPhone 4. I had sent about 20-25 texts this morning just fine. Then after receiving one back about 15 minutes ago, I got this.... http://www.youtube.com/watch?v=Cwno1sGq-vA Now after every sent and receive text message chime - that lovely noise follows. I have restarted my phone and even resync'd just to see if that would fix anything - it didn't. Anyway, anyone had a clue as to what this is or how it started out of the blue??