I use the notorious AVG Antivirus Free edition on several of my computers. However, I want to know if there is any real reason for an upgrade to AVG Pro? Is there a crippled threat detection rate in AVG Free? Is the threat detection & removal exactly the same in free and paid versions? Where the only differences are small additional program features (such as advanced scheduling). I just want to know if AVG Free omits some threats from its detection database to make us want to upgrade to the Pro version. Thanks.