Why can't I use Netscape?
You can use Netscape as your browser of choice for regular web surfing. The reason that you need Internet Explorer is that Microsoft has been kind enough to allow developers (me) to use their browser inside programs for no charge. Once you see the power that this adds to the new version of In-Depth Guitar (IDG), you will see why it is a requirement.
The browser is integrated into IDG and allows you to check for new songs, lessons, exercises, etc without ever leaving the program. Internet Explorer is also REQUIRED to view the new lessons available for IDG. These lessons will incorporate all types of information including videos, audio files, midi files and or course tablature files.