Madison police say a Saturday evening accident appears to have been caused by a medical problem suffered by the driver.  A car ran into the side of the state Capitol building at about 7:30 p-m.  Firefighters say the vehicle came from the east side of Capitol Square, hitting other vehicles before it rammed the building.  A spokesman for the Wisconsin Department of Administration says no damage was done to the building.  The driver’s name and condition weren’t released.  Police say it’s possible the same vehicle was involved in an earlier crash a few blocks away.