I bought this product three months ago but I'm now being told that my copy is not genuine. Anybody else experienced this? Microsoft tells me I have a Volume License Key - does this mean I have to purchase another key to use on my home PC?
Check out Microsoft's How to Tell (http://www.microsoft.com/howtotell/)site. The counterfeit gallery has some really good telltales: http://www.microsoft.com/howtotell/content.aspx?displaylang=en&pg=counterfeit and http://www.microsoft.com/howtotell/counterfeit/gallery/default.aspx?displaylang=en.