computer unable to load _pysvn.pyc

[Timothy Smith]

this is truely maddening

Traceback (most recent call last):
  File "PubWare.py", line 11, in ?
  File "Main.pyc", line 46, in ?
  File "pysvn\__init__.pyc", line 12, in ?
  File "pysvn\_pysvn.pyc", line 9, in ?
  File "pysvn\_pysvn.pyc", line 7, in __load
ImportError: DLL load failed: A device attached to the system is not 
functioning.

any ideas? it works perfectly on another computer