I only got the Blender (intergrated) version a couple of days ago..
This is the only project it has happened in (so far) but am currently having a rotation issue with the render view not matching the camera view! I am looking in to it right now but thought it worth seeing if anyone else has had this problem? Due to the Cam being tracked to constraint (empty)?
Thanks

PS: Jimstar.. I am REALLY impressed with your work on this mate

[youtube]http://www.youtube.com/watch?v=2Km5kJkWm6M&feature=youtu.be[/youtube]