If anyone can help me out with the proper settings for AutoCAD 2010 on a 64-bit machine I would greatly appreciate it. This is my first 64-bit machine I have worked on and am not familiar with it, nor do I know what I need to tweek to get it to work properly. It is a brand new machine with Windows XP64. Revit Structure 2010 runs incredibly well on it with no tweeking at all. AutoCAD 2010, however, takes forever to open tool palettes, takes a lifetime to manipulate layers, and runs very slow in general. Anyone with the same problems? Thank you in advance for any help you can provide.