So I purchase my Galaxy S4 a week ago. The first day I used it, I took some video. During video playback (not during video filming), I was able to extract still photo frames. There was a small box in the upper middle of the video during playback just under the name of the video and if I hit that it would capture a still frame of the video. On either side of that button were arrows to advance the frame forward or back. There was no hooking it up to a computer or anything, it was on the phone itself. So last night instead of taking pictures I video the fireworks hoping to extract the photos so today I try and the little box is no longer there. When I was first able to do this it was a stock phone, I did not have any apps downloaded. Has anyone else been able to exract frames from video? What am I doing wrong? Also, it was not a screen shot of the video, it was an actual extracted frame from the video during playback.