Color static bars across numbers in unlock screen?

[Cammie Melton]

I just had this problem start today. Only in the unlock screen so far, when I hit 1, 4, or 7 a horizontal bar of color static pops up through the number across the screen. No problem with unlocking- does just fine, and so far no sign of it in any other context. Is there anything I can do to fix this? or does it indicate further problems?

 

[B. Diddy]

Welcome to Android Central! Try wiping the cache partition, which won't erase any personal data: https://motorola-global-portal.custhelp.com/app/answers/prod_answer_detail/a_id/95582/p/30,6720,8881