Mine did the same thing and it turned out I had a battery that was on it's way out. When I'd turn on the key the display would be fine but when I'd hit the starter it'd hesitate, eventually start, but the clock and trip meters were reset like the battery had been disconnected. I checked and cleaned the connections when it first happened but it would still do it on colder mornings. Just prior to getting the new battery I had to leave her on the tender every night.
Ride To Live, Live To Ride....no, really!