Package: xserver-xorg-core Version: 2:1.7.7-7 Severity: important The XSecurity extension is no longer available in squeeze. It seems upstream disabled building it by default. According to jcristeau it could be re-enabled with a configure option. XSecurity is available in lenny. Not having it in squeeze looks like pretty big regression to me. Please consider if it is still possible to include it in Squeeze. Thanks.