On my old SD card from my previous phone i had videos of my son and when i put that SD card into my Eris the videos play but don't have audio.. my levels on ringer and media are all the way up but still no sound.. I then changed from my old SD card that was 512mb to the 8 GB that came with the phone and still no luck.. i can play the videos on my computer through the SD card but they don't through my phone.. can someone please help? I have some very priceless moments of him since birth to now and he's about to turn 2. thanks!