[tilt-me]

Hi all,
I've been using calibre with success during the last few years, last time I uploaded an ebook was this january (sort of); last week I tried to upload a new ebook but it failed with an input/output error; today I tried again, same error:

calibre, version 4.3.0
ERROR: Error: Error communicating with device

[Errno 5] Input/output error

Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 90, in run
self.result = self.func(*self.args, **self.kwargs)
File "/usr/lib/calibre/calibre/gui2/device.py", line 594, in _upload_books
metadata=metadata, end_session=False)
File "/usr/lib/calibre/calibre/devices/usbms/driver.py", line 325, in upload_books
filepath = self.put_file(infile, filepath, replace_file=True)
File "/usr/lib/calibre/calibre/devices/usbms/cli.py", line 53, in put_file
dest, actual_path = case_preserving_open_file(path)
File "/usr/lib/calibre/calibre/utils/filenames.py", line 205, in case_preserving_open_file
os.fsync(ans.fileno())
OSError: [Errno 5] Input/output error

I'm on a linux box (archlinux); when I connect my kindle via USB, the filemanager shows files and folders from my kindle, and I can navigate them; when I open calibre, device is recognized, and I can see ebooks loaded on my device; when I try to transfer an ebook from calibre to kindle, I receive the error mentioned above, and I cannot navigate files and folders through the linux filemanager anymore.

If I connect my kindle on windows 7, windows tells me it needs to be repaired, but I refused to let windows do that.

Thanks in advance for any help, bye!