It sounds like you have excessive overscan. It can only be fixed in the Service Menu.
Your TV's overscan may be considered to be within acceptable limits and therefore not covered under warranty. With your short ownership period and you having multiple problems, I would just exchange it, rather than haggle with a warranter.
Your TV's overscan may be considered to be within acceptable limits and therefore not covered under warranty. With your short ownership period and you having multiple problems, I would just exchange it, rather than haggle with a warranter.