Superbly Unstable Joystick readings?

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any 1 know why is? not code since did read stick , took the  first 10-20 readings , averaged them out.(link)

anyways, arduino mega board? did on uno , got stabalize, every potentiometer value unstable on mega.

the mega have: link

post code.  don't know think can without code.

post schematic.  don't know think can without schematic.

post output of program.  call unstable, give no numbers in relation that.  show no data see periodic or varying or much.  don't know think can without data. 

do send note doctor saying, "i don't feel today can tell me what's wrong.  i'm not coming in , won't let @ me , won't give other details.  must tell me what's wrong."


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