I set custom ringtones (using short mp3s) for two of my contacts, however on multiple occasions the ringtone did not work. For example, today one of my contacts called... I saw the call come up on the screen but no ringtone at all. When I tried to go to the screen to select ringtones, the custom one showed up on the list but when I selected it nothing played. The ringtone has worked before, so it does not seem to be a consistent always/never type of thing. Has anyone else experienced this? This was on a stock Motorola Droid, no root or anything else. Seems like some strange issue with playing media, I downloaded a .mp4 video and it would not play - after powering off then on, it worked fine.