For debugging purposes, I need to use a fixed random seed. However, I'm having trouble getting a fixed sequence to occur. I've tried setting it in the UI version of the simulation, in the constructor of the simulation itself, and explicitly calling random.setSeed() from the simulation start() method. Any ideas? Thanks, Angel Martinez RAND Corporation __________________________________________________________________________ This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.