I currently have RVS Home Lux 2010 on my WinXP Pro computer. I gather that I could upgrade to System Safe Pro 2011 for $19.97. If I were to do that, should I uninstall Home Lux first, or can I/should I install System Safe Pro 2011 on top of Home Lux 2010? And is there a way to try System Safe Pro 2011 before paying for the upgrade? I'm not completely sure that I want System Safe Pro. The free version may give me all I need, but it's hard to tell. Does the free version provide the Virtual Disk feature (so I can create a Virtual Disk and save items to it before rebooting after using Returnil)? Thanks in advance.