Picard crashes on opening when it cannot reach the internet. It simply displays the "Errors occured" window. From the error log:
Traceback (most recent call last):
File "tagger.py", line 1278, in ?
File "tagger.py", line 1274, in runTagger
File "tagger.py", line 1209, in init
File "musicbrainz2\webservice.pyc", line 841, in getUserByName
File "musicbrainz2\webservice.pyc", line 860, in _getFromWebService
File "musicbrainz2\webservice.pyc", line 252, in get
musicbrainz2.webservice.ConnectionError: <urlopen error (11001, 'getaddrinfo failed')>
Expected behaviour would be for it to open anyway and display a warning window ("server could not be reached").