[Eric] about pythonw crash of eric4

[App Engine]

Warning:
An unhandled exception occurred. Please report the problem using the error
reporting dialog or via email to <eric4-bugs at die-offenbachs.de>. A log has
been written to "C:\Documents and
Settings\Administrator\_eric4\eric4_error.log".
Error information:
--------------------------------------------------------------------------------
2008-08-24, 02:14:52
--------------------------------------------------------------------------------
<type 'exceptions.ValueError'>:
list.index(x): x not in list
--------------------------------------------------------------------------------
File "C:\Python25\Lib\site-packages\eric4\UI\Browser.py", line 379, in
handleProgramChange
self.__model.programChange(os.path.dirname(fn))
File "C:\Python25\Lib\site-packages\eric4\UI\BrowserModel.py", line 262, in
programChange
self.beginRemoveRows(QModelIndex(), self.progDir.row(), self.progDir.row())
File "C:\Python25\Lib\site-packages\eric4\UI\BrowserModel.py", line 652, in
row
return self.parentItem.childItems.index(self)
--------------------------------------------------------------------------------
Version Numbers:
Python 2.5.2
Qt 4.4.1
PyQt4 4.4.3
sip 4.7.7
QScintilla 2.2
eric4 4.2.0 (r2385)
Platform: win32
2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)]



how solve it?
thanks
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