[horde] Hascapabilities error!!!

[Emilio Ruben Estevez]

Hi, im having this recurrent error:

Fatal error: Call to undefined function: hascapability() in 
/var/www/myweb/horde/lib/Auth.php on line 230.

I dont know whats wrong, i follow all instructions of the installation 
documentation and help files, but i get this error all the time, what am i 
doing wrong??

Some info of my system:

OS: Mandrake Linux 9.1
Horde Version: 2.2.3
Imp Version:  3.2
Turba Version: 1.0
Passwd Version: 2.2
Poppassd Ceti Version: 1.8.3

Apache Version: Apache-AdvancedExtranetServer/2.0.44 (Mandrake Linux/11mdk) 
mod_perl/1.99_08 Perl/v5.8.0 mod_ssl/2.0.44 OpenSSL/0.9.7a PHP/4.3.1 Server 
at www.estudioviegas.com.ar Port 80

PHP Version: 4.3.0

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