Avast Free not acknowledging proxy for some traffic... fills firewall logs.

Avast Free 7.0.1426 on Win 7\64 is configured to use a web proxy on port 8080.
However it’s constantly sending data to various ip addresses associated with avast on port 80.

Performance Monitor shows AvastUI using port 8080 but AvastSvc using port 80.
This appears to be a bug.

How do I get this to stop?