[LAU] chrt not sudo'ing?

This isn't really a linux audio question, but it's related to getting my system going. My /etc/sudoers has this in it: %cdrom ALL= NOPASSWD: /sbin/shutdown %cdrom ALL= NOPASSWD: /bin/mount %cdrom ALL= NOPASSWD: /usr/bin/chrt With this, shutdown and mount will both work without adking me for a password. However, chrt WILL NOT work without a password. It insists. It insists obnoxiously. What could I possibly be doing wrong here? chrt is where it says it is supposed to be: -rwxr-xr-x 1 root root 9280 2006-11-15 00:01 /usr/bin/chrt* And yet I keep getting asked for my password, whereas shutdown and mount work just fine without it. -ken