No new events? Help!

Hi Guys,

I'm usingZenoss 5.0.10 community version for months without problem.Several hours ago there'sno new events on the events page neither from manually adding events nor from system thresholdtrigger (old events are still there), rebooting zenoss and server doesn't help.I have no idea how to trace and solve it. Please give me some advice orsuggestion.

Thanks in advance!

-David