I have Office 2010 with 3 license. I removed it from my other PC's when I disposed of them and have installed it on a new PC. It took the product key OK however when I run Excel or Word, it ask to run an activation. When I do so it says it cannot activate because I used all the license? It is now only on my new Win 7 machine. What can I do to fix this. I don't want to loose my investment in this product and cannot afford to buy a new copy at this time.

Jeff