Something strange: each time I plug-in the usb cable to my reader, the progress bar displays with "Processing" at the bottom. Just like if I had added a new book. Same thing happens if I unplug the cable. If I open up Calibre a pop-up window shows:
disk I/O error
Traceback (most recent call last):
File "/home/kovid/build/calibre/src/calibre/gui2/device.py", line 69, in run
File "/home/kovid/build/calibre/src/calibre/gui2/device.py", line 311, in _books
File "/home/kovid/build/calibre/src/calibre/devices/kobo/driver.py", line 164, in books
OperationalError: disk I/O error
Damn, what's going on??