I'm still in 15.1 my Co-worker has upgraded to 15.2, we run Allegro on both the PC & Sun Stations, we have always had some problems with lines, shapes, vias, that appear/disappear, on both the PC & SUN, vs how far you zoom in. I think it's more related to the video card instead of Allegro. A setting that greatly effects this on my station is "Display_raster_ops" goto setup, user preferences, display, and toggle "Display_raster_ops" on/ off see which works best for you. ________________________________ From: Mosley, Bobby [mailto:bobby.mosley@xxxxxxxxxxxxxxxx] Sent: Monday, January 10, 2005 3:19 PM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Disappearing lines Hello All I have a question on disappearing lines (not clines). I am on 15.2 running on XP. When I zoom in close lines disappear, is there some setting that I am missing or is this just a lovely feature. Thanks in advance for all your help. Bobby Mosley PCB Designer 503-685-3209 360-901-1573 bobby.mosley@xxxxxxxxxxxxxxxx <mailto:bobby.mosley@xxxxxxxxxxxxxxxx>