Not able to assign ringtones to Phone/notifications

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http://forum.xda-developers.com – Just downloaded the latest Toast/Deck CM10 and suddenly can't assign any ringtone. In settings>sound> it says "unknown ringtone" and if I click on it (usually the page pops up where you can choose the ringtone) a box pops up and tells me 'android.process.media stopped working' Anyone else had that happen to them? How can I fix it? Sent from my EVO using Tapatalk 2 (HowTos)