Issue: You successfully acquired the license key( the blue license key popup window displayed "License Key Acqusition Successfull"), but when you go to play the lessons, you get a popup message saying "In order to listen to this file you must download a license key".

There are two common reasons for this, both easily fixed:

1. This is very a common issue to have recently if you have AVG anti-virus and/or Windows firewall running, as the new versions of those will block the license key, but still report that it downloaded successfully. The simplest fix is to temporarily disable your antivirus and Windows firewall(only if it is running), download the license key again, then re-enable your anti-virus and Windows firewall(only if it was running).

2. You need to use Windows Media Player to play the lessons, burn onto a CD, or transfer to your MP3 player. Other media players will not work with Microsoft's license key software.