[Dovecot] corruption?

[Neal Becker]

I'm using maildir (and have been for a long time).  Today I have a problem:

ls -al (maildir):
[...]
drwx------  5 nbecker nbecker    4096 Jan  1  2006 .;SECTION=

What's this?  It seems to be causing my mail client (kmail, using dimap), to
hang.