I just installed mod_security 2.5.4 on an ubuntu 8.04 with apache2.2, I'm trying to test the functionnalities of Mod_Security and decided to try out the SecServerSignature and the server signature remains the same. In the error log I get the following :

[Thu May 29 14:30:49 2008] [notice] ModSecurity for Apache/2.5.4 (http://www.modsecurity.org/) configured.

My server tokens are set to full and my serversignature is on. Any ideas ?