Cover picture: The image shows a compound eye of the fruit fly, Drosophila melanogaster. The superimposed electroretinograms (red) show the photoresponse in wild-type (top) and pinta (bottom) mutant flies in response to orange and blue pulses of light. For details, see the article by Wang and Montell in this issue (pages 5187–5194). The authors demonstrate that the retinoid-binding protein PINTA is required in retinal pigment cells for production of the light receptor rhodopsin. This work implicates retinal pigment cells as the fly equivalent of retinal pigment epithelial cells.