Leo Laporte mentioned on one of his podcasts that his 3GHz Mac Pro with 4GB RAM and ATI X1900 ran Vista with Aero support using the latest Parallels. Is the reason his Vista install was able to do Aero because of his computer's muscle or because the latest Parallels build has better hardware implementation than the previous version? My 2.66 GHz Mac Pro with the stock graphics card and 2GB RAM did not do Aero when I had Vista RC1 installed in Parallels.