Are you off by an hour? AFAIK, GPS is like a cell phone, the time hack is part of the signal. Your not in one of those wonky IN areas where Daylight Savings varies by block, are you?
Don't have the book with me right now; I am at work.
Mine was off by an hour when I got mine, and I went into the menu of the Nav. sys., and all I had to do was to select the time zone that I am in, it may also have a selection for automatic Daylight Savings time too.
Hope that this helps.
Jimmy,
I had the same problem after selecting the GPS block, time zone, daylight savings choice, and then pressing the enter button. I forgot to select the "DONE" block at the bottom of the screen before pressing "ENTER."