Hi I just got Lock on Modern air Combat,
Everything was ok for a couple of days, but now I can't change the key configuration.
I go to the options menu then input and change the key functions, but when I press fly or ok the keys change back to default.
What am I doing wrong?
Thank you

You're not clicking OK to save the changes you made and/or you have version 1.0 installed on which the developers failed to remove the "read only" flags on the config files.

Highlight the lock on folder from within windows explorer,

select properties

uncheck the read only box.