Posted for Mafopp5@aol.com:

 The adjustment on the nose gear retractiojn cylinder needs looking  at.  It
 has probably loosened and if you jacked up the aircraft and raised  the gear
 you can re-adjust it to close properly.  This happened to me quite  soon
after
 the first flight and was only loose adjustment.
 
 Dr Michael  A Fopp
 Home Office
 Email: Mafopp5@aol.com