I have owned a Treo 600 for about a month. Yesterday for the first time I attempted to download some ringtones from mididb.com. Although I was successful I now have a sound that comes from the phone intermittently and I have no idea how to get rid of it. I erased all the downloads thinking maybe one was corrupted but it didn't help. Has anyone out there ever experienced this and does anyone have a clue how to get rid of the problem? I am a novice re computers although I love them. Any help would be appreciated.