I am about to install ATI Home 2009. I have 3 questions: First question: Is it better to wipe clean my existing Freecom 500GB ext HD and start with a clean slate? Second question: I have been using NTI Shadow to backup to my ext HD. Shadow backs up all docs as they are edited/altered/saved.. will ATI Home 2009 do this as well? (I am changing because Shadow crashes umpteen times a day because, so the makers say, it is not designed to back up the OS, which I want). Third question: Would it be advisable to partition my ext HD before installing ATI Home? My system is: Windows XP Home SP3; 2.5GB RAM 5-year old Fujitsu Siemens Cordant desktop, Intel Pentium 4; 80GB int HD (with about 30GB unused). Thank you.