Right now I use the Parallels 5.0.8899 beta. With Win7 RC1 build 7137 I have iMac & MBP both with 4GB Memory. The question is, my win7 is too slow no matter the boot up and the running up. Today, I start the Win7 from my MBP. Almost takes 30 minutes to boot up completely. Does any one know how to tune up or optimize the win7 in Parallels 5.