Thanks for the tip on the limit attribute on scale_fill_gradientn. I'll check out mencoder and let you know if I use your code for the movie. Cheers -- View this message in context: http://r.789695.n4.nabble.com/Heatmap-in-R-and-or-ggplot2-tp3594590p3600034.html Sent from the R help mailing list archive at Nabble.com.