[Steinway]

I just had a sudden thought regarding this - and if this is indeed important, then I'm sorry I didn't think about this earlier.. I just realized that I do keep my tablet in a faux leather Targus case (http://www.targus.com/uk/foliostand-note...k-thz459eu), and I guess there is a slight possibility that this case is affecting the tablet in some way or another. I haven't seen any weird behavior in any other apps on this tablet, but I have had experiences in my past with (magnetic) phone cases making my phones do strange things. There are no magnets on this Targus case, but as you can see from the pictures, the case attaches to the tablet with straps around the corners. Though the straps don't cover the screen itself in any way, the slight pressure they make on the tablet corners could maybe be enough to produce undesired effects - such as when turning pages. I'll discard the theory as soon as I get a new black page - but until then, I will try playing without the Targus case and see if this solves the problem.
Could I ask you other guys who have had this problem, if you are also keeping your tablet in similar cases, or if you get the black pages even without using a case?