[kcbanner@kc ~]$ blender -w
Compiled with Python version 2.5.
Checking for installed Python... got it!
Traceback (most recent call last):
  File "<string>", line 47, in <module>
  File "/usr/share/blender/scripts/bpymodules/b2cs/__init__.py", line 39, in <module>
    import defaults
  File "/usr/share/blender/scripts/bpymodules/b2cs/defaults.py", line 46, in <module>
    b2cs.prop.walktest = b2cs.util.getSystemProgram("walktest")
  File "/usr/share/blender/scripts/bpymodules/b2cs/util/pathhelper.py", line 49, in getSystemProgram
    if os.path.exists(os.path.join(path,program)):
  File "/usr/lib/python2.5/posixpath.py", line 62, in join
    elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'