What errors are displayed ?
What is your firewall ? Does it allow ashWebSv.exe and ashMaiSv.exe internet access ?
- If it does delete the entry for it, reconnect to the internet browse and try to collect your email, this will force the firewall to ask permission again.
Though your rebooting to solve it doesn't appear to be firewall related.
Have (or did) you another AV installed in this system, if so what was it and how did you get rid of it ?
I trust that you aren't using the server edition of avast ?
Hopefully one of the moderators will move this to the avast 4 Home/Pro forum.