As I said before, I use Kolab2 on a 2.6.10 Gentoo server with NPTL (threading) enabled. If you want install Mysql via openpkg this fails triggered by the missing liblinuxthreads. According to the Gentoo forums you have to insert in /usr/include/pthread.h the line /* Linuxthreads */ and mysql compile and runs fine. HTH Thorsten