[horde] Class 'Net_DNS2_Lookup' not found

[LALOT Dominique]

Hello,

I have some strange trace in apache error_log

Tue Mar 06 08:50:00 2012] [error] [client 139.124.132.69] PHP Fatal error:
Class 'Net_DNS2_Lookup' not found in
/usr/share/php/Net/DNS2/Packet/Request.php on line 18
I have no big troubles running horde but sometimes there is such errors in
apache logs. Am I alone?
Package is installed normally via pear

Net_DNS                    1.0.7   stable
Net_DNS2                   1.2.0   stable
php 5.3.3

horde 4.0.13

Thanks

Dom

-- 
Dominique LALOT
Ingénieur Systèmes et Réseaux
http://annuaire.univmed.fr/showuser.php?uid=lalot