Hi everybody, I just bought my first smartphone (Droid X2) yesterday and I seem to be encountering some issues regarding two apps and their notification sounds. The Facebook App for Android installs a notification sound file called facebook_ringtone_pop.m4a but it does not play any sound when I click on the actual file through the phone, nor if I select "Facebook Pop" within the menus. I plugged my phone into the computer and played the file there and I was able to hear the sound. I have the same problem with the IMO instant messenger notification where there is not an actual file installed, yet nothing is played when I receive an incoming message. For either apps, if I choose one of the pre-installed ringtones, they work. I have already tried factory resetting the phone (twice), replacing the file, nothing works. Wondering if anybody knows how to fix this. Any help is much appreciated. Thanks.