I had to re-install parallells but now when i try to start my VM using the old Hdd i get this message "File /Users/janitor/Documents/Parallels/Microsoft Windows XP 1/winxp.hdd seems to be not a valid Parallels virtual machine configuration file!" is there any way i can get my old Hdd file to work with my new install i have never had this problem before it has always excepted my old configuration and worked as normal, with all xp program and files intact.