Parallels works fine on my Mac Pro quad 3ghz running 10.6.6. Latest version of Parallels and Windows 7. Most Windows software runs fine. Autocad 2011 does not work well. I can do drawings, but the cursor is sluggish -- slow enough to make it difficult to do drafting. Autocad for Mac running on Snow Leopard does the same thing. I also have Autocad 2011 running on a dual processor Windows computer and it works fine -- the cursor moves at normal speed. What can I do in Parallels to help Autocad run normally?