NAM(Network Analysis Module) Question

I have NAM-2(3.3.1 with patch 3.3.1)
I just installed NAM in Cat6509. and then monitiring.
I had configured SPAN(both and rx) to redirect whole traffic from cat6500 to NAM.
At this time, I didn't configure about Valns. Because, i know the the NAM(3.3.1 later) can gather whole valn in the Supervisor Engine whthout any configuration about Vlan.
I tried to watch the status of Vlans in the NAM's webpage menu. But i only can see one vlan. i couldn't see rest of them.
the web page told me "No data available".
How can i see rest of vlans?
Thank you...

Have you enabled the collections for your span source under Setup->Monitor screen in the NAM Web GUI?

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