problem squat failed

[johan]

Hi,

I use cyrus with imp and postfix. 
I noticed a bizar fact in my mail logs : anybody knows what does the
error "squat failed" mean ? I looked a bit in the maillistings and found
this posting : "Somebody did a full-text search and Cyrus checked (and
didn't find) an
index file for the mailbox. I think you can ignore this or put something
like this into your /etc/cyrus.conf EVENTS:

  squatter cmd="squatter -r user" period=1440"

When I do this, i cannot authenticate anymore. Anybody suggestion ?
Greetz,
johan