hi,list I have a question with error message. [Thu May 22 10:53:46 2008] [notice] Apache/2.2.8 (Unix) configured -- resuming normal operations [Fri May 23 06:34:34 2008] [alert] No active workers found... Apache is exiting! [Fri May 23 07:17:37 2008] [warn] pid file /opt/hexun/apache22w/logs/httpd.pid overwritten -- Unclean shutdown of previous Apache run? and no other error, i don't understand "Unclean shutdown of previous Apache run?" the last start is [Thu May 22 10:53:46 2008],why it's say "Unclean shutdown of previous Apache run?"