FRV 1.20 Dies Creating GPU Code for First Run

I have a registered copy of FRV, previous version was working fine.  Tried to update on Win 7/64, was unable to run program.  Error info:
Problem signature:
  Problem Event Name:    BEX64
  Application Name:    FastRawViewer.exe
  Application Version:    1.2.0.719
  Application Timestamp:    563e5213
  Fault Module Name:    StackHash_1dc2
  Fault Module Version:    0.0.0.0
  Fault Module Timestamp:    00000000
  Exception Offset:    0000000000000000
  Exception Code:    c0000005
  Exception Data:    0000000000000008
  OS Version:    6.1.7601.2.1.0.256.48
  Locale ID:    1033
  Additional Information 1:    1dc2
  Additional Information 2:    1dc22fb1de37d348f27e54dbb5278e7d
  Additional Information 3:    eae3
  Additional Information 4:    eae36a4b5ffb27c9d33117f4125a75c2

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