problem with alert

[sunljhhust]

hello,all
My idel is that when the status of a trigger is true, i want to execute a script. I have the fellow steps.
1.create media_type
description:test_script
type:script
script name:test
2.creat media
type:test_script
send to:admin
use if severity:all checked
3.creat a trigger
name:free_disk_space
expression:{test:vfs.fs.size[/home,free].last(0)}<100000
severity:warning
4.create a action
action type:send message
source:trigger
conditions:host="test"
trigger="free_disk_space"
send message to : "single user"
user:admin
status:enable

i found that when the status of the trigger changed from false to true,but
no action is executed.
Any thing wrong with me? i use zabbix-1.1.4

Thanks

[Alexei]

Is your version of ZABBIX 1.1.4 or 1.4.1?

[sunljhhust]

the version of my zabbix is 1.1.4

Thanks

[Alexei]

I would suggest upgrading to the latest 1.1.7.