This program animates a bunch of little line segments chasing a randomly accelerating line segment. The concept is simple, but the effect is pretty cute. By default, it comes up in a window, but it can be put in the root window too. In order to make it usable as a screen background, you can alter the delay between updates, making it use very little cpu time. One of the reasons why it doesn't use much cpu time is that it only uses integer arithmetic. You can also use it as a screen saver. Also makes a great dessert topping. This program has been tested successfully on a Sun's, DECstation's, HP's, and Tektronix 4317's. The only thing you will probably have to change in the Makefile is the location of X include files. Try xswarm -h for help. Fiddle with the parameters. You can get really different effects! Jeff Butterworth Home: 130 S. Estes Dr., Apartment D-8, Chapel Hill, NC 27514 (919) 942-9177 School: 342 Sitterson, UNC-Chapel Hill, NC 27599 (919) 962-1849 E-Mail: butterwo@cs.unc.edu "Drew: I guess I'd rather be buried up to my mouth in ticks for 20 seconds. Jeff: No way, I'd much rather eat a bowl of my own scabs." -Famous computer scientist quotes