Do you think you could help me with a problem?

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http://androidforums.com – My phone is a pantech marauder. It's a pretty good phone but something weird is going on. It just went through an update today and switched to Jelly Bean from Ice cream sandwich. Nothing major is happening but whenever I try to change my lock screen to something other than pantech lock or slide, it wont change. But when I go back to change it again it is the newly changed lock. It's really annoying, thank you to anyone that can help. (General)