mp3 wont play

[dulgart09]

I downloaded a ringtone i had created using myxer to my android 2. its an mp3 file and i played it and selected it to be used as my ringtone. everything worked fine for almost a week. now i just made another ringtone on myxer and emailed it to myself. i tried to play the attachement and it said the file type (mp3) is not supported by the player. Now it will not play the previously created ringtone either.... anyone know what is going on or why my phone will no longer play mp3's??