Hybrid Crashes during startup at Initializing Preview

[jweaver]

I am using a fairly old version of Hybrid but it does everything I want, so I stopped upgrading some years ago.. Its flawless and never fails and nothing has changed on my PC, atleast not in the time since I have run Hybrid last.

But today, when I try to launch it, when it gets to "Initializing Preview", it crashes with "Hybrid Encoder Gui has stopped working".. Details show:

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    Hybrid.exe
  Application Version:    2015.5.13.1
  Application Timestamp:    555b6120
  Fault Module Name:    Qt5Core.dll
  Fault Module Version:    5.4.1.0
  Fault Module Timestamp:    54e2d6e3
  Exception Code:    c00000fd
  Exception Offset:    000000000026d017
  OS Version:    6.1.7601.2.1.0.256.1
  Locale ID:    2057
  Additional Information 1:    f88f
  Additional Information 2:    f88ff1916e94783332ccfa2e559abd45
  Additional Information 3:    3166
  Additional Information 4:    316604349714d4211f8db871b563165a

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Any thoughts/ideas?

Jon