Spamassassin don' t find perl

["Josep M." <websurfer@gamu.navegants.org>]

Hello.

I have installed spamassassin from www.backports.org and runs well, but
when I want stop this gives me a message error that perl is not found.

I have all ok in my system, and perl is in the right place, what can I
do here?

Here is all details

debianet:/etc/postfix/system/backup# /etc/init.d/spamassassin stop
Stopping SpamAssassin Mail Filter Daemon: No /usr/bin/perl found
running; none killed.
spamd.

debianet:/etc/postfix/system/backup# ps ax |grep spamd
 5071 ?        Ss     0:01 /usr/sbin/spamd --create-prefs --max-children
2 --username spamd --helper-home-dir -s spamd.log -d --pidfile=spamd.pid
 5166 ?        S      0:00 spamd child
 5167 ?        S      0:00 spamd child
27955 pts/1    R+     0:00 grep spamd


debianet:/etc/postfix/system/backup# apt-show-versions spamassassin
spamassassin/etch uptodate 3.2.4-1~bpo40+1

debianet:/etc/postfix/system/backup# apt-show-versions spamc
spamc/etch uptodate 3.2.4-1~bpo40+1

debianet:/etc/postfix/system/backup# apt-show-versions perl
perl/etch uptodate 5.8.8-7etch3

debianet:/etc/postfix/system/backup# ls /usr/bin/perl*
/usr/bin/perl       /usr/bin/perlbug  /usr/bin/perldoc       /usr/bin/perlivp
/usr/bin/perl5.8.8  /usr/bin/perlcc   /usr/bin/perldoc.stub



Thanks
Josep