These files still seem to be getting loaded even though `Mozilla.Test.isSmallScreen` returns false? I'd check through the [Modernizr.load tutorial](http://modernizr.com/docs/#load) to find out what conditions you need here, but I believe it should be the yep/nope methods.

You could probably also remove `knowBoxInit()` as this does a second check for `isSmallScreen`, which should have already been satisfied here.