Hi there, I have a patch with two balls moving but the movement isn't smooth.....what can I do to optimize the refreshment of the images and get a smoother movement? I'm using PD and GEM in an iBook OSX. Cheers, Enrique -- WORK: +353-61-213553 Room CS2-036, Interaction Design Centre CSIS University of Limerick Limerick Ireland http://www.iua.upf.es/~ffranco