After rendering my sequence changed to 1440 x 1080 instead of 1920 x 1080. I am unable to change this in sequence settings. Help please?
Do you mean rendering as in processing the timeline for better editing performance, or do you actually mean exporting to a new file?
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Rendering as in processing the timeline for better editing. I'm using Creative Cloud with all the current updates and working on mac OSX version 10.9. When the program pane is paused the clips look normal, but once I play the sequence changes.
"Creative Cloud with all the current updates" is not enough information; please report the exact version number displayed in the About Premiere Pro dialog. If it turns out that you're on 7.1, they you might be hitting the bug discussed in this thread: http://forums.adobe.com/message/5826830#5826830.
I'm not clear on what exactly the problem is. Is it that the video appears squeezed in the horizontal dimension during playback? Or did the sequence's dimensions actually get changed?