JG has missed the point. While he may be running AutoCAD successfully on his little home network, in a corporate environment it causes nothing but problems. XP Home is meant for exactly that, home. I do tech support for a living, supporting both Microsoft and Autodesk products. I have managed up to 80 AutoCAD users and their workstations in one company that migrated from Windows 2000 to XP. One idiot in IT even suggested we use Home on certain workstations just to save a few bucks. He doesn't work there anymore, not just because of that stupid suggestion, but many more. In a work environment with a network Home will be nothing but problems. A small peer to peer network works for up to three people. Add more than one print device and problems ensue. Count on one of those machines to be a file server and you get more problems. If you keep your client files on your local hard drive you better be backing up frequently, because you will eventually lose that hard drive. That is why Pro has all those features that Home does not. Pro allow you set up a domain. Servers are cheap and domains are pretty simple to set up. Now JG may start the old tired rant about Microsoft downgrading Home just to be able to charge more for Pro. People can cry all they want, the prices are what they are. If you want a good running CAD workstation on a network you have to have Pro. I get many calls from Autodesk clients that try to run their Autodesk products on Home and have nothing but problems. Most of these have to do with the fact that their "Home" computer is being used for too many other things that it shouldn't, like AIM, games, photo editing, email, internet. Autodesk products have become resource intensive. Most people that have XP Home on their PC have done so to save a few bucks over the price of really good workstation and pay the price in performance because they want to do everything on that one machine. Autodesk products will not work optimally in that type of setup. And a business should not be set up that way.