I waited to updrade to 4.0 until I got my new Mac. But, I can't seem to get through the install process. I've uninstalled, reinstalled, followed suggestions in the knowledge base, all with no luck. I've done a sucessfull install, and activated with a single user license. At operating system detection, it does not give me the option to chose "real CD/DVD", eventho the disk is in (and available thru Finder). It's a Windows XP Home Edition disk. It's OEM, legit, and with a license key. Can't do a manual install. It accepts my Windows key, but I cannot get any further than "specify the virtual machine and it's location" screen. It accepts input, but will not go forward. Can anyone help me here?