[Spambayes] Bug in version 1.1a1 ?

[Pippo Peppo]

Hello

after upgrading to version 1.1a1, some messages are not classified by
spambayes.

They don't get a "X-Spambayes-Classification:" header, but this error
header:

X-Spambayes-Exception: Traceback (most recent call last):
 .  File "sb_server.pyc", line 564, in onRetr
 .  File "spambayes\message.pyc", line 452, in addSBHeaders
 .  File "spambayes\message.pyc", line 401, in RememberClassification
 .  File "spambayes\message.pyc", line 377, in modified
 .  File "spambayes\message.pyc", line 181, in store_msg
 .  File "shelve.pyc", line 130, in __setitem__
 .  File "bsddb\__init__.pyc", line 218, in __setitem__
 .DBRunRecoveryError: (-30978, 'DB_RUNRECOVERY: Fatal error,
 run database recovery -- PANIC: Invalid argument')

Version 1.1a1 is also much slower than version 1.0.4 and the harddisk
is working very hard when spambayes is working or when I click a link
on the browser interface.

Can you help please?

Thank you

Pippo