nicholasdatt@yahoo.co.uk wrote: > I specify 99 for DiagStep as instructed in the user manual, and yet > i do receive some diagonal lines. Why?? Because the cost of all other solutions was higher. 99 only makes it unlikely, not impossible. > Also, is there a way to prevent tracks from top and bottom overlapping - > this is when the red and the blue on the screen merge and form pink?? Not that I can think of. You can specify keepout areas for the autorouter, but not automatically make a trace on one layer a keepout on another. Why do you want this? This sounds like you are getting stuck in an implementation rathole, and need to step back and think about how to solve the true problem. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist