Hi there,
I have just upgraded Vista to Windows 7 RC. Calibre was working like a champ on Vista but is now throwing communication errors. It detecs the PRS-505 then brings up this error:
If I try to send a book I get:
The Sony Library appears to be working ok. As it happens Calibre seems to be clever enough to go ahead and copy the book to the SD card instead (nice!) but just thought you might want to know about these errors..