C:\Documents and Settings\All Users\Application Data\AVAST Software\Avast\WebShield.ini
Paste this there and ZERO sites blocked.
[WebScanner]
URLBlocking=0
HttpRedirectPort=80,8080,8091,8081,8008,8888,3124,3127,3128
HttpRedirectPortUpdated1=1
BlockedURLs=*RIDICULOUSLY_LONG_LIST_REMOVED*