You need to contact Cadence about this. Looks like they have a memory leak that needs to be plugged. -- George Patrick Tektronix, Inc. Central Engineering, Engineering Design Services P.O. Box 500, M/S 39-512 Beaverton, OR 97077-0001 * 503-627-5272 (voice) * 503-627-5587 (fax) <http://www.tektronix.com/> http://www.tektronix.com <http://www.pcb-designer.com/> http://www.pcb-designer.com "Off-Grid and Proud of it!" -----Original Message----- From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Samuel Cais Sent: Wednesday, May 17, 2006 13:12 To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] allegro crash when routing diff pairs When I'm routing some diff pairs I'm having this message. It's really annoying.Do you know any fixes? I'm running allegro 15.5 p008 (v15-5-81j) (7/13/2005) i86 Thanks Samuel Samuel CAIS Interphase Corporation CAD PCB Designer 2901 N. Dallas Parkway #200 cais@xxxxxxxxxx Plano, TX 75093 214.654.5337 www.Interphase.com