Example: http://img836.imageshack.us/img836/3245/different.jpg
That large a degree of difference is not acceptable to me. As someone who's trying to achieve a very specific head morph (one that the preview window shows me the engine is capable of generating) it's extremely frustrating to go to the render window and find that the engine generated a very different head morph from the one it showed me in the preview window.
To note, I was careful to match the camera distance and angle between the two windows for that example. It's not a preview/render camera issue; it's a mesh/morph target issue. I have absolutely no mods installed at the moment, cosmetic or otherwise. I even did a clean reinstall of both Skyrim and the CK to see if traces of mods were the problem; they weren't. The integrity of both the game cache files and the tool cache files checks out, too.
