I received my two 7" Touchscreen display units yesterday and hooked them up as instructed. The screen works wonderfully, but I cannot get touch inputs to register. I'm sure there must be a driver I need to load, or a program I should run to try to test, but so far firing up a Kivy demonstration did not register the touch events so I'm concerned my first-run units are faulty.
I am on the latest copy of raspbian (via apt-get upgrade) but my bootloader is likely from May.
What is needed to properly test the official 7" Touchscreen?