Body: <p>After starting Premiere, playback works fine, but if I edit the timeline and move the current time indicator, the program display either goes dark or gets stuck on a frame and will not play. 
  <a href="https://i.sstatic.net/VmYvQ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/VmYvQ.png" alt="enter image description here"></a>
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  <p>I have 12 GB of memory but Premiere never uses more than 4 GB, however when editing it uses 100% CPU. This is an Asus laptop with a 5th generation low voltage Core i7-5500 processor, and Intel(R) HD Graphics 5500 and NVIDIA GeForce 840M graphics cards. What can I do to fix this problem? This is a much better spec laptop than my old one and I've never had anything like this happen before.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-08-08T19:18:19.193Z
Comments.Text: I had issues similar to this which I tracked down to a memory issue with a prores codec. I had 16GB and when I went to 32GB the the issue stopped. Are you using third-party prores codec?
Comments.UserDisplayName: integris
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-08-08T19:21:39.163Z
Comments.Text: You might try transcoding several of your clips into DNxHD in a fresh project and see if the issue goes away. QT on PC is 32bit only.
Comments.UserDisplayName: integris
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-08-11T15:18:00.467Z
Comments.Text: What is the codec of your source video? Do you have hardware acceleration (Mercury Playback Engine) turned on in Premiere?
Comments.UserDisplayName: Nate Barbettini
Tags: <premiere><playback><cs6>
Title: Why won't the Premiere CS6 timeline playback after edits?
UserDisplayName: Emily
ThreadText: # Why won't the Premiere CS6 timeline playback after edits?
  
  (Asked by: username_0 on 2015-08-08)
  
  After starting Premiere, playback works fine, but if I edit the timeline and move the current time indicator, the program display either goes dark or gets stuck on a frame and will not play.
  [![enter image description here](https://i.sstatic.net/VmYvQ.png)](https://i.sstatic.net/VmYvQ.png)
  [![enter image description here](https://i.sstatic.net/GRlxl.png)](https://i.sstatic.net/GRlxl.png)
  
  I have 12 GB of memory but Premiere never uses more than 4 GB, however when editing it uses 100% CPU. This is an Asus laptop with a 5th generation low voltage Core i7-5500 processor, and Intel(R) HD Graphics 5500 and NVIDIA GeForce 840M graphics cards. What can I do to fix this problem? This is a much better spec laptop than my old one and I've never had anything like this happen before.
  
  **Tags:** premiere, playback, cs6
  
  > **Comments:**
  > **username_1**: I had issues similar to this which I tracked down to a memory issue with a prores codec. I had 16GB and when I went to 32GB the the issue stopped. Are you using third-party prores codec?  
  > **username_1**: You might try transcoding several of your clips into DNxHD in a fresh project and see if the issue goes away. QT on PC is 32bit only.  
  > **username_2**: What is the codec of your source video? Do you have hardware acceleration (Mercury Playback Engine) turned on in Premiere?  
  
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  ## 0 answers
  
  