I have a Droid X and have been using QR Droid to scan QR codes. For the most part, it's worked successfully when opening urls and text files. However, my phone won't open any mp3 files. (My phone opened an mp3 file a couple of times a few weeks ago with no rhyme or reason. Now it won't open them at all.) I also tried QuickMark QR reader app and it won't open them either. My partner has a Droid X and uses the QR Droid app and his works fine every time. I'm wondering what I can do to fix this problem. Any ideas, anyone??