Gps

Um...every time you use your GPS, you have to program it to tell it where you are going. I'd start by putting in my home address including street address, city, state and zip code. (For the record, they don't reset themselves so yours "suddenly set for Ohio" is a very hard thing to understand, not to mention answer. Sorry.) Is your GPS an independent unit, like a Garmin or a TomTom? Or did it come installed with your car? Have you updated it via a download from your computer? Anyway, just be sure when you're putting in where you want to go that you put the state and always always include the correct zip code. :)