[Nefertum]

Hi,
I have some problems with Calibre everytime when I try to connect my sony prs 600 with Calibre an error come up "Error communicating with device"

(22, 'Invalid argument')

Traceback (most recent call last):
  File "site-packages\calibre\gui2\device.py", line 57, in run
  File "site-packages\calibre\gui2\device.py", line 203, in _books
  File "site-packages\calibre\devices\prs505\driver.py", line 104, in books
  File "site-packages\calibre\devices\prs505\books.py", line 135, in __init__
  File "xml\dom\minidom.py", line 1918, in parse
  File "xml\dom\expatbuilder.py", line 928, in parse
  File "xml\dom\expatbuilder.py", line 204, in parseFile
IOError: [Errno 22] Invalid argument

I can normally connect my reader with ebook library but not with Calibre.
I would be glad if anyone could help me.