Working fine on my IPad.
If your using a Samsung Galaxy Tab 10.1, I've had numerous display issues certain apps....We have 2 first gen 10.1's we mounted in the car for Netflix etc for the kids, and 2 new 10.1's my wife and I use....All 4 have issues on occasion and need to be rebooted....Not sure what you're using, so just an FYI....