From the looks of it, i would guess, that there are some UV-manipulations in the image-map node. Preview mode Uses always uv-coodinates from 0 to 1, regardless if you change the uv-offset or uv-scale in the image-map. Which is the default, so to quick-test it, you could delete the image-node, create a new one, plug it into the diffuse-channel, render in both modes. Do render and preview then look the same (same wrong or same right)?