First I want to start out by I love my phone. I had all the iPhones besides the 5, then Galaxy s3 and purchased the Htc one (just wasn't for me) and now the s4 which I adore as much as I did my galaxy s3. Not sure if this is a bug or a defective phone, maybe someone can help? I use the stock dial pad/ contact list/ call log.. When I swipe to the right of a contacts name to call its unresponsive, not always but most of the time, if I swipe to the left to message them I have no issue. This has also happened with the app flipboard, a few times when I touch to pick a article to read. This doesn't happen in any other apps that I have tried or while browsing. Seems to be a bug since it doesn't happen when I swipe to unlock or swipe to answer a call etc.. I am waiting on my screen protector to get here from amazon, the screen protectors makes it easier to glide your fingers on.. I also went into my settings and checked high touch sensitivity, it made no difference. Anyone else?