PythonWin Errors while debugging

[Chuck]

I frequently observe the stack trace below while using PythonWin (which I
otherwise love).  I seem to be associated with debugging, breakpoints and
possibly moving focus from/to PythonWin.  Anyone else observe this?

[Dbg]>>> Traceback (most recent call last):
  File
"C:\Python23\Lib\site-packages\Pythonwin\pywin\framework\dbgcommands.py",
line 73, in OnGo
    self._DoOrStart("do_set_continue", scriptutils.RS_DEBUGGER_GO)
  File
"C:\Python23\Lib\site-packages\Pythonwin\pywin\framework\dbgcommands.py",
line 57, in _DoOrStart
    method()
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 636, in do_set_continue
    if self.GUIAboutToRun():
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 787, in GUIAboutToRun
    if not self.StopDebuggerPump():
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 485, in StopDebuggerPump
    if self.GUIAboutToFinishInteract():
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 836, in GUIAboutToFinishInteract
    self.oldForeground.EnableWindow(1)
win32ui: The window handle does not specify a valid window
win32ui: Error in Command Message handler for command ID 15022, Code 0
Traceback (most recent call last):
  File
"C:\Python23\Lib\site-packages\Pythonwin\pywin\framework\dbgcommands.py",
line 79, in OnClose
    d.set_quit()
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 642, in set_quit
    ok = self.StopDebuggerPump()
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 485, in StopDebuggerPump
    if self.GUIAboutToFinishInteract():
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 836, in GUIAboutToFinishInteract
    self.oldForeground.EnableWindow(1)
win32ui: The window handle does not specify a valid window
win32ui: Error in Command Message handler for command ID 16010, Code 0
Traceback (most recent call last):
  File
"C:\Python23\Lib\site-packages\Pythonwin\pywin\framework\intpyapp.py", line
53, in OnClose
    pywin.debugger.currentDebugger.close(1)
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 450, in close
    if not self.StopDebuggerPump(): # User cancelled close.
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 485, in StopDebuggerPump
    if self.GUIAboutToFinishInteract():
  File "C:\Python23\Lib\site-packages\Pythonwin\pywin\debugger\debugger.py",
line 836, in GUIAboutToFinishInteract
    self.oldForeground.EnableWindow(1)
win32ui: The window handle does not specify a valid window