I have a p4 computer, 1gig ram, 200gig hd. For some reason on my old system win2000 and on my new system xp, AutoCAD crashes every 3-4days. Iadmit I have many programs (MS Outlook, IE, Excel, notepad, and a few other little programs) open at the same time, but I do have 1gig ram. I also, typically have 4 or more drawings open at the same time. If I reboot every couple of days then no problem, but I often forget to do that. Even though I have autosave on, it is still kind of annoying. Any idea why that happens. Thanks.