I have mring on my treo 650 and I use the random ringer that it has. Every few days my mp3 files from the mring folder are gone, my mp3's on the root directory are still there it's just the ones from the mring folder. I noticed this first right after I installed nesem so I don't know if these 2 apps don't get along or if it's something totally different. Does anyone have any experience with this? thanks for the help.