archibrat said:I am an architect and have been using both with XP running on a 17" MB Pro with 2 gigs ram with great results. It seems to handle the 3D models fine, renders in about the same speed as my 2yr old Dell Pent. 4 desktop; (about 3 - 30 seconds slower given the rendering options). There is a very slight lag in the mouse tracking, but most people do not notice this issue. My wife's low end Dell laptop has the same issue. There is a problem with the middle button of a 3 button mouse. It does not work to PAN as it does running traditionally. This is a big pain for me. I use my middle button to PAN and having to type in P + enter each time I do so is annoying. This is a Parallels issue with 3 button mice drivers.. They do not allow you to modify the middle button; or program it. Hopefully this will get fixed. I think there is another way around this if you can find someone who can program AutoCAD's mouse input commands.
I was also having the same problem with the middle button not panning, but got it working yesterday. Go to mac System Preferences, then Keyboard/Mouse settings and change the middle button to BUTTON 3. When you go back to Autocad it should now work the way you want it