[ossec-list] Force syscheck database

[Macus]

I am using OSSEC 2.6 on Centos 5.3 64. I have installed one server to 
manage 6 servers with agents. I found sometimes the OSSEC missed to 
generate the syscheck database sometimes after I have updated the 
agent.conf and restart the OSSEC agents and servers. Is there any way to 
force the OSSEC to start the syscheck database after I restart the OSSEC 
every time?? Without the syscheck database, the OSSEC server will not 
trigger any alert for file integrity check.
thx.