VFR Flight following - wierd results

In 3/11/2011 at 9pm, I flew N737PD from KDKX to KPDK. On flightaware, most of the track showed up - mostly the last 40 minutes of the flight or so. I checked it when I got to the hotel.
On 3/12/2011 at about 8:45am I departed KPDK back for KDKX.

Both flights were VFR with flight following, with flight following initiated by the approach controller at the departure airport.

Flightaware shows both of these flights as one flight!
It actually shows I landed on 3/11/2011 just after 10:00 at night, but the graphic on the map shows most of my return flight too.

Any ideas why this happens?

The data we receive for VFR flights is spotty and unreliable.