So, what I use to do when at work was listen to movies/shows on my iPhone, but not watch the video just audio only. I'm sure most of you knew this was possible, but basically I would play a movie, then push the sleep button & the movie would stop and my screen would be off. Next I would either push play on my headset cord or double click the home button, which brings up the iPod controls and push play and the movie would start playing audio only, but no video. I liked doing this because at my work we can listen to music off our phones/mp3 players, but not watch movies. Since upgrading to iOS 4.2.1 I can't get this trick to work. I try, but it just flashes real quick from play to pause, but never starts playing the audio. Anybody else having this issue? Hopefully my long winded post isn't too confusing. Thanks for any responses!