I installed the Skype and Skype Mobile apps on my Droid 4. The Skype Mobile apps gives me a message saying that it's not available for my device, and I will get an update when it becomes available. So, I use the (regular) Skype. I"ve come across some problems, and I'm not sure if it's my phone, or if it's the app. When I make videos calls with people, sometimes they can't hear me. They can hear me fine when we talk on the phone. When we video chat, I can hear this high pitched squealing (or long beep, or something) noise. in the background. They say they hear the same thing on their end. And when I try to IM them on Skype, they can see my messages, but I can't see theirs. Any suggestions on what might be wrong, and what I can do??? I have a little less than 30 days to return my phone, so if it's the phone, I'd like to be able to exchange it.