[imp] Excesive sessions!!!

[Briongos Caballero, Sergio]

Hello, I have installed in my new server Fujitsu Siemens PRIMERGY RX300 S3
(Dual Core Intel Xeon 5000 8Gb Ram 6x146 Gb SAS HD): 

 

 

Operating System: 

*	Centos 4
*	Postfix + Vda quota patch
*	Courirer-imap
*	Mysql

 

Horde Version

*	Horde: 3.1.3

 

Horde Applications

*	Horde: 3.1.3
*	Imp: H3 (4.1.3)
*	Mimp: H3 (1.0)
*	Turba: H3 (2.1.3)

 

 PHP Version

*	PHP Version: 4.3.9
*	PHP Major Version: 4.3
*	PHP Minor Version: 9
*	PHP Version Classification: release
*	You are running a supported version of PHP.

 

If I logon to horde and I go to Administration - Sessions, I can see:
Current Users (1745) when nobody is inside my horde because I have only one
user in database.

 

Is this normal?

 

How can I close this sessions?

 

Thank's.