Won't run on Linux

I'm seeing a problem on Linux (Redhat 9).  I get the following
crash starting up the app.   If I do a clean checkout then that
does work for a while.  Any ideas?

Traceback (most recent call last):
  File "src/gui.py", line 1038, in DataAddItemUpdateUIEvent
AttributeError: 'MainWindow' object has no attribute 'widget'

Variables by last 8 frames, innermost last

Frame __init__ in src/gui.py at line 891
             sz =  wx.Size(32, 32)
             ib =  <wx._gdi.IconBundle; proxy of C++ wxIconBundle instance at _40846808_p_wxIconBun
        impmenu =  <wx._core.Menu; proxy of C++ wxMenu instance at _38e66708_p_wxMenu>
           help =  'Export Call History to CSV'
         parent =  None
          title =  'BitPim'
           menu =  <wx._core.Menu; proxy of C++ wxMenu instance at _98a96908_p_wxMenu>
           self =  <gui.MainWindow; proxy of C++ wxFrame instance at _00fc6408_p_wxFrame>
        expmenu =  <wx._core.Menu; proxy of C++ wxMenu instance at _d8126908_p_wxMenu>
           func =  <function OnFileExportCallHistory at 0x42a3780c>
              x =  237
             sb =  <guiwidgets.MyStatusBar; proxy of C++ wxStatusBar instance at _d80e6508_p_wxStat
        menuBar =  <wx._core.MenuBar; proxy of C++ wxMenuBar instance at _489c6808_p_wxMenuBar>
         config =  <gui.Config instance at 0x402de6cc>
             id =  -1
           desc =  'CSV Call History...'

Frame needconfig in src/guiwidgets.py at line 688
           self =  <guiwidgets.ConfigDialog; proxy of C++ wxDialog instance at _68556e08_p_wxDialog

Frame setfromconfig in src/guiwidgets.py at line 603
           self =  <guiwidgets.ConfigDialog; proxy of C++ wxDialog instance at _68556e08_p_wxDialog

Frame ApplyBitFlingSettings in src/guiwidgets.py at line 526
           self =  <guiwidgets.ConfigDialog; proxy of C++ wxDialog instance at _68556e08_p_wxDialog
              _ =  None

Frame __call__ in src/bitflingscan.py at line 210
           self =  <bitflingscan.MethodIndirect instance at 0x42bbc4ac>
           args =  ()
         kwargs =  Keys []
                   {}

Frame callfunc in src/bitflingscan.py at line 176
           qres =  <Queue.Queue instance at 0x42bbc3cc>
           self =  <BitFlingWorkerThread(BitFling worker thread, started daemon)>
           args =  ()
       loopfunc =  <function SafeYield at 0x4054c2cc>
           func =  <bound method flinger.unconfigure of <bitflingscan.flinger instance at 0x41a0ff6
         kwargs =  Keys []
                   {}

Frame SafeYield in /usr/lib/python2.3/site-packages/wx-2.6-gtk2-unicode/wx/_core.py at line 7437
           args =  ()
         kwargs =  Keys []
                   {}

Frame DataAddItemUpdateUIEvent in src/gui.py at line 1038
           self =  <gui.MainWindow; proxy of C++ wxFrame instance at _00fc6408_p_wxFrame>
          event =  <wx._core.UpdateUIEvent; proxy of C++ wxUpdateUIEvent instance at _30adffbf_p_wx



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