I've used Calibre since a lot of time with my Sony PRS-T2 and no big problem until now.
Actually using v1.7.0 of Calibre, after pluging the device, Calibre is first reading the list of books (2m 19s) and now trying to synchronize (Task saying "Sending metadata to device...") and after 233 minutes it's still not finished !
Any ideas ? I can't stop this task, what can I do the recover ?