I've used both Dapper Drake and Edgy Eft
I've used it also, but version 1.0.7, and everything was OK.
(or the firewall, if you use any)
Yes, I do use firewall - gtk manager firestarter, with more less default policy - outbound traffic fully allowed, inbound blocked. Like I wrote in previous post, I've updated avast on my laptop, which was using PC's internet connection (sharing set up by firestarter). At the same time avast on PC wasn't able to update.
Did you install the registration key correctly?
If was able to update virus database so I think yes...

By the way , thanks for your interest guys.