Tom Tom One - using address screen

SEPOCOCK Registered Users Posts: 6
Apprentice Seeker
edited August 2018 in Devices using TomTom HOME
I have a One First Edition and recently find it impossible to insert the characters on the far left of the screen. Its as if those fields automatically default to the second character on each. Or as if my fingers are too fat and always hit the wrong button - tried using a data pen with smaller point but makes no difference. I have updated software now but no change.

Any ideas?