[Dovecot] Expunge working on folders, but not main mailbox

[Xev Gittler]

I've recently installed dovecot, and while the behavior on folders is 
correct, the inbox cannot be expunged.

This is 1.1.3 running on Fedora release 8 (Werewolf) on ext3 
filesystems, using both thunderbird and squirrel clients.

Any assistance would be appreciated.
X

# 1.1.3: /usr/local/etc/dovecot.conf
info_log_path: /tmp/dovecot.log
protocols: imap imaps pop3 pop3s
disable_plaintext_auth: no
login_dir: /usr/local/var/run/dovecot/login
login_executable(default): /usr/local/libexec/dovecot/imap-login
login_executable(imap): /usr/local/libexec/dovecot/imap-login
login_executable(pop3): /usr/local/libexec/dovecot/pop3-login
mail_location: mbox:~/Mail:INBOX=/var/spool/mail/%u
mail_debug: yes
mail_executable(default): /usr/local/libexec/dovecot/imap
mail_executable(imap): /usr/local/libexec/dovecot/imap
mail_executable(pop3): /usr/local/libexec/dovecot/pop3
mail_plugin_dir(default): /usr/local/lib/dovecot/imap
mail_plugin_dir(imap): /usr/local/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3
auth default:
  verbose: yes
  passdb:
    driver: pam
  userdb:
    driver: passwd
plugin:
  mail_log_events: all