I am at square 1. I have a new Mac and OS 10.1. I used to use Windows 7 and I have its disk. I want to have both desktops on screen and be able to run programs on either system (Apple or Microsoft). I want to also be able to do a report, or spread sheet and move the results to the other side. Swap files either way. So I tried to do the dual boot, but that not what I want. I tried to run parallels and it could not load and run W7, some kind of error. I have in the past used Fusion (virtual stuff). So should I forget Boot Camp and run Fusion and then Parallels tp get what I want?