light blue line going across screen
I have restarted my iPad a few times but this blue line about an inch thick slides across the screen. I went to the Apple Genesis by of it did not appear while there. Came home and it is back.
iPad, iOS 8.4.1
Hold down on the sleep and home buttons at the same time for about 10-20 seconds until the Apple logo appears on the screen. See if it goes away. If it doesn't, take it back to the Apple Store and hange around until it occurs again.