A bug with COMODO Firewall and Norton Antivirus 2009

Anyone who uses COMODO Firewall along with Norton Antivirus 2009?
There is something strange:
At first,everything with COMODO Firewall is OK.
Then, after I installed Norton Antivirus 2009, comodo’s SUMMARY tab showed there were some files “waiting for your review”,but the linked “My pending Files” gave no items.
I think this maybe a bug.My OS is Vista SP1 home basic.
Thank you for help!

what a strange problem!!
I just want to combine these two products though you have found this bug.