I\'m setting a new property on my google analytics account, and one of the fields I have to fill out is Default URL:
In addition to the In-Page Analytics, the Default URL setting is used for cleaning the data. According to point 6 in this article http://online-behavior.com/analytics/accuracy:
For example if you tell it "index.php" is your default page, the "/index.php" in your content reports will now be lumped in with "/" into one clean row.