Every event I try to pull a packet for to check the raw event info, I receive a "No packet data available" message. I seem to remember a place to configure this, not sure if there actually is a spot for this. I'm also looking for some info on troubleshooting packet retrieval.
Set your time frame to current day and select a data source.
Under Events, Go to Packet Click on Retrieve Packet
If you are not seeing a packet, you may want to check your receiver. Packets are retairned for only a certain period of time