Hello...My name is Steve and I have a new Motorola Droid Razr M. I have downloaded the application Tango for Video calling and can't seem to get it to work. When my phone connects with my granddaughter, I can see her and hear her, but she cannot see or hear me. I can also see the small window where I should be able to see myself from the front camera, but it is only blank (black). If I switch to the back camera, she can then see whatever I am pointing the camera at, but still cannot hear my voice. I know the front camera works, but for some reason, not through Tango. Does anyone know what is causing my problem? Should I try redownloading Tango?