I recently set a custom notification ringtone to alert me when I receive a new text message. The ringtone sits in my SD card under the folder "Notifications". Sometimes, I will get a text and my phone will vibrate and pulse light, but the notification ringtone will not be heard. When this happens, I go to Menu>Settings>Sound & display>Notification ringtone and then reselect my ringtone. What will happen on most occasions is as soon as I tap the ringtone I want to set, it will not sample the sound file and the menu will freeze and force close. What happens after this usually involves some cursing and a reboot. Why is my phone forgetting my notification ringtone selection? Why does it force close like that and how can I prevent this? If it makes any difference in your diagnosis, I am rooted.