has anyone else had problems where during the slide to unlock screen, the response time for the slide is late. like once you slide the lock switch, it takes a few seconds to actually slide? I had that today and it got frustrating cause I sleep my iPhone when I choose the album I want to listen to and when I want to change it, its annoying. but a restart fixed the problem. I had put a anime movie on there earlier in the morning, maybe that was the problem?