I was horrified to find that, after upgrading Atomic Time Synchroniser to version 4.1 and then 4.2 (both paid for), Ports 13 and 37 of the AVG Firewall are open. I have e-mailed AVG support, but they say in their automatic response e-mail, that it may take some time to answer. I have tried running the Firewall Wizard in AVG, but the problem remains. All other Service Ports are stealthed and I would like Ports 13 and 37 to be so too. Any advice gratefully received.