MS Office 2010 -- purchase doubts Dear members, Products like Norton Anti Virus, when bought, is valid for one year or two years depending on the type of purchase and we have to renew the subscription periodically. Whether this applies to MS Office 2010? I plan to buy it. It will be waste of money if i have to pay periodically for this. Let me know if i can use MSOffice 2010 as long as I wish, if i buy it. Thanks in advance.