[Q] Call answer softkey issue

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My call answer softkey is being very temperamental, when I receive a call and press the answer softkey it will change color so I know it is not a touchscreen responsiveness issue, but it doesn't pick up the call...sometimes. Sometimes the call will pick up on the first press and sometimes I'll hit it 100 time before the call goes unanswered (this is usually the case), my answer hardkey doesnt work either. anybody have any ideas, I would like to avoid a hard reset if possible, I'm using the sprint stock rom