Some parts of objects in my scene disappear in viewpoint, but as soon as I rendered it, parts of objects disappear. I’ve turned on all the layers in rendersettings. I would be very thankful if anyone could help me! Here are some screenshots. 
http://www.flickr.com/photos/70129018@N04/6370066439/in/photostream
http://www.flickr.com/photos/70129018@N04/6370080979/in/photostream