These programs require the Java Runtime Environment (JRE) version 1.5 (or higher). You can download the JRE free from Sun or Apple (OS X requires Java 1.6). You don’t need the JDK (Java Development Kit) or anything else to run miniTraff with the 2D display. The miniTraff 2D display runs a bit slow on a Pentium at 233MHz, but it still works fine if you have less than a dozen intersections on your map. The (optional) 3D display needs at least a 1GHz processor with 256MB of RAM and a fairly beefy video card and still may not display smoothly if run faster than real time. Importing LandXML files (which is optional) requires a SAX parser. If you do not already have a parser installed you can download one free via www.saxproject.org. See ‘LandXML Trouble-shooting’ in the (im/Ex)port panel help for all the dirt. The (optional) 3D display requires drivers for JAVA 3D, VERSION 1.5.1, which can be downloaded free through: java.sun.com The 3D display may also require drivers for OpenGL version 1.2 or higher. These can be downloaded free through: www.opengl.org See the ‘3D Display Trouble-shooting’ section of the ‘3D proJection panel’ help in the ‘help / index’ panel for more installation troubleshooting details. I’ve attempted to test this as well as possible, but my test platforms are Linux (Debian w/ a 3.0 kernel and Fluxbox) and Windows ME, so other platforms may have problems. (and more testing is always needed) miniTraff mouse use: When the 2D map display has covered the main menu, a right click will open a pop-up menu and a left click will stop traffic and may select a vehicle. CTRL-/ will bring up a panel specific help screen for the current display. mapTraff mouse use: A left click will either open a pop-up selection menu or the creation menu (if nothing is selected). A right click will always open a pop-up creation menu. CTRL-/ will bring up the mapTraff general help screen. miniTraff and mapTraff are licensed under the Open Software License version 1.1. This software is provided under this License on an ‘AS IS’ BASIS and WITHOUT WARRANTY, either express or implied, including, without limitation, the warranties of NON-INFRINGEMENT, MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Source.