rule/notify bug?

create rule  radius1 as on update to user where (current.usrppp <> new.usrppp) do notify radius;

update user set usrname = 'Brett McCormick' where usrid = 'brett';
NOTIFY

the notification comes through on the radius relation (which, interestingly, doesn't exist)

linux 2.0.33, postgresql 6.3.2..
should I be filling out a bug report? ;)
or just using gdb

creating the table & dropping and recreating the rule has no effect