Sorry if I'm being a bit dim, but couldn't find anything definitive on this elsewhere in the forum... Anyway, I'm a new Parallels user, about to install XP Home Edition as a VM - recently converted to a Mac (1.83 GHz Intel Core Duo Mac Mini), but with some stuff I want to run in Windows VM - specifically MS Money & MS Office for Windows. Firstly - is it possible / 'better' (safer / faster etc) to locate the Windows installation on my external HD rather than my Mac HD? Secondly - if I disable all network connections and never connect the Windows VM to the internet (I only use Safari & Mail on the Mac behind the Mac Firewall) do I still need to install virus protection on my Windows VM? Any advice for a newbie to the VM world would be appreciated... Thanks.