[rwmcafee]

I've installed version 0.8.51 and can not open any lit books in the reader now. See the following:

calibre, version 0.8.51
ERROR: Could not open ebook: I/O operation on closed file

Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\main.py", line 38, in run
File "threading.py", line 483, in run
File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 112, in __enter__
File "site-packages\calibre\ebooks\oeb\iterator\book.py", line 44, in write_oebbook
File "site-packages\calibre\ebooks\oeb\writer.py", line 64, in __call__
File "site-packages\calibre\ebooks\oeb\base.py", line 954, in __str__
File "site-packages\calibre\ebooks\oeb\base.py", line 909, in fget
File "site-packages\calibre\ebooks\lit\reader.py", line 886, in read
File "site-packages\calibre\ebooks\lit\reader.py", line 722, in get_file
File "site-packages\calibre\ebooks\lit\reader.py", line 514, in read_content
File "site-packages\calibre\ebooks\lit\reader.py", line 410, in wrapper
ValueError: I/O operation on closed file

Hope this helps to figure out what went wrong.

Ron