When I try to duplicate a track more than once the program crashes and I get the following error.

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    TrackVis.exe
  Application Version:    0.0.0.0
  Application Timestamp:    4eb9997a
  Fault Module Name:    QtCore4.dll
  Fault Module Version:    4.7.3.0
  Fault Module Timestamp:    4d92c5ee
  Exception Code:    c0000005
  Exception Offset:    0010d42a
  OS Version:    6.1.7600.2.0.0.256.48
  Locale ID:    1033
  Additional Information 1:    0a9e
  Additional Information 2:    0a9e372d3b4ad19135b953a78882e789
  Additional Information 3:    0a9e
  Additional Information 4:    0a9e372d3b4ad19135b953a78882e789