I was looking at the Introduction of the Apparatus. The Browser is messed up. If I click the disclosure triangle at List of Lectionaries, I get this.
Screen Shot 2015-03-03 at 4.31.38 PM.jpg 18.58KB 0 downloads
When closed the Browser looks like this.
Screen Shot 2015-03-03 at 4.31.50 PM.jpg 36.82KB 0 downloads
Additionally, there is no mention of Early Versions in the Browser, and the Early Versions are found under List of Lectionaries.
Clicking the disclosure triangle for the Minuscules also yields a lot of blank space, as does the disclosure triangle for List of Latin Church Fathers.
There are Browser listings for 1. through 3., but none after that.
Basically, looks to me like the Browser needs an overhaul.