Zabbix 2.0.9 | Availability Report 100% Unknown

[insertcoin]

Hi,

I am having trouble with a number of my hosts, they show 100% Unknown for availability but everything appears to work fine:



The available memory appears to be working fine:



The trigger doesnt have any errors and data is being correctly collected:





Any advice or help would be greatly appreciated.

[BDiE8VNy]

In Reports → Availability report you can see what proportion of time each trigger has been in problem/ok/unknown state.
See: Availability report

I'd assume for the triggers in question doesn't exist any (PRROBLEM/OK) event within the selected period.