I have Windows 7 installed as a virtual machine in Parallels 6 running on my iMac. I own 2 licenses to Windows 7 and Parallels 6, and would like an identical copy of this virtual machine running in Parallels 6 on my MacBook. Will I encounter any problems by copying the pvm file from the iMac to the MacBook, and running the virtual machine in these two places? Do I need to worry about using sysprep or duplicate SIDs? What's the best way to tell the 'new' copy of Windows 7 that I want to enter my second license key, so that everything is kosher for my licensing? Thanks! MGZ