> bash-3.00# chmod ugo+s /usr/local/bin/jackd > bash-3.00# exit > bash-3.00$ ls -la /usr/local/bin/jackd > -rwsr-sr-x 1 root root 206476 2005-11-01 15:23 /usr/local/bin/jackd this is a really, really, really bad thing to do. there is no reason to run jackd as root or set it up as setuid root. you should be using some kernel-based technique that allows you to get realtime priviledges without being root (capabilities on 2.4 kernels, realtime-lsm for 2.6.12 or lower, or the new rtlimits code for 2.6.13 or above). if you cannot do that, then just run without realtime or explicitly run all JACK apps as root. do NOT install random, non-security related applications as setuid root. --p