Weird numpad applications in nano only when using putty through windows : I am using ubuntu on an old PC of mine and i am communicating to it using putty through a windows laptop 
when using the terminal everything is fine and i can use numpad very normal 
12345689/*- and the num lock key
however when i open anything in nano all these keys have functions i guess
numlock does a very weird thing and all the other keys are similar 
the 4 2 6 8 do left down right up respectively as if the num lock is disabled but it isn't disabled and when i try to re enable it the button doesnt work
i did search about this and found a few solution to change putty settings and i did and it had no effect i think i must change the nano perefences but i am a beginner with linux so i don't know how
thanks!