Can't scroll through apps in file sharing
I have iTunes 11.0 on OSX 10.8.2.
I wanted to drag a file to an app on my iPad, but can't scroll down to the app in question in iTunes/Devices/iPad/Apps/File Sharing/Apps.
I tried scrolling in my iPhone's apps with the same problem.
Scrolling my magic mouse, it is like it's on a rubber band, and I can see maybe one more app before bouncing back.
Changing the resolution of my screen, I can make the iTunes window bigger, to reach more apps. Is this a known bug? Is there another way I can get a file into one of those apps?
OS X Mountain Lion, Home workgroup