It knew of difficulties in using Avast 4,7 with the Morpheus Ultra ( P2P software). The Internet linking fails. 
Which firewall do you use?
Into the firewall settings, the following programs should be allowed to connect:
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe (avast! Web Scanner)
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe (avast! e-Mail Scanner Service)
C:\Program Files\Alwil Software\Avast4\Setup\avast.setup (avast! Update executable). This is a temporary file that just appears when an update (check) is about to launch, and disappears again afterwards.
Thanks, and sorry about my weak english. 
We can understand you (nós te entendemos

).