As though we need still another reason to hate DRM, here comes one.  Remember the now-defunct MSN Music store?  Hopefully you weren’t one of the few to use it.Customers who have purchased music from Microsoft’s now-defunct MSN Music store are now facing a decision they never anticipated making: commit to which computers (and OS) they want to authorize forever, or give up access to the music they paid for. Why? Because Microsoft has decided that it’s done supporting the service and will be turning off