I had my first dictionary pop-up touch-screen freeze. My freezes are when I am reading periodicals because those are the type of files that I just plain read and swipe. The touch-screen froze after 20 minutes of reading and swiping. I let it come back to life without doing a reset. Then I started reading the periodical again. 45 minutes later no freezing by swiping so I thought all was well. Then I opened a word in the dictionary, and the touch-screen froze.
I still do not have freeze issues when I read books, except the one time that I was in a car with no Wi-fi access to distract me while reading.