I recently purchased from Macconnection.com the 2011 Microsoft Office Home & Business version for what I thought was two users. After reading the license agreement it appears that it is for ONE user with TWO computers. I had planned on using this for my Mac and my wife's. I then read elsewhere that there is some sort of security embedded in the software that will not let two computers with the software installed run on the same network at the same time. This would obviously present a problem as my wife and I are likely to be using both computers at the same time. To further compound the problem Macconnection.com has a 20% restocking fee on return merchandise which would result in the price of the two use version of Office being about the same as the single use version and there would be no point of returning it. Does anyone have a solution to this dilemma?