In a previous level, I'm thinking one of the 14.2 versions, this same error would appear during plot operations if you would switch your plotter output on the fly. If Cadence approachs this in the same way as they approached the plotter problem, they will insist that it is a windows issue if you are the first to report it. Don't be shy about escalating this problem all the way up the chain, if you don't get a satisfactory fix or work around to solve this. ps. the work around for the plotter problem was to back out, delete the allegro.ini file in the same directory as the env file, go back into allegro, change the setup and plot. Good Luck ________________________________ From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Samuel Cais Sent: Wednesday, May 17, 2006 4:12 PM 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