I am working on a project in After effects 6, and a recent issue has occurred. As I scrub the composition is accurate in scale (image on left), but if I attempt a ram preview, it zooms in and compresses the subject matter in an odd way (image on right). I am unable to view the compositions properly unless i pre render into an .mov file and replace the comp. Both 2d and 3d layers are affected. I have opened the project in both ae6 and CC, and have installed all available updates, but nothing seems to fix the issue. Any help on this matter would be appreciated.
16 gig ram (13 allocated to AE)
2.7 ghz intel core processor