I am editing a video in Adobe Premiere Pro CS6 on a 2012 MacBook Pro with the Intel HD Graphics 4000. Sometimes the play button does not play the footage anymore, I can press the button but nothing happens. Do you have any suggestions for a solution?
If you Google this problem, you'll see it's quite common. Below are a few suggestion to fix this problem from a big Creative Cow thread about the issue.
If one of these fixes work for you, let us know in the comments.