UserParameter "files.open" isn't shown correctly...

[just2blue4u]

My zabbix Client (V1.1beta8) shows this behaviour:
Local:
1306 open files...

[root@zds-file-1-pbs root]# lsof | wc -l
1306

The agent's return value could be correct (because it was taken after the above):

[root@zds-file-1-pbs root]# zabbix_agentd -p | grep files.open
files.open                                    [s|1327]

Now: Why does my server say there are only 35 open Files?

[root@sds-kip-stdby-pbs root]# zabbix_get -s zds-file-1-pbs -k files.open
35

[den_crane]

May be lsof return different results for simple user and root?
#su - zabbix -c "lsof | wc -l"