Microsoft took a gigantic leap into online entertainment this week with a new partnership with Netflix, the online/mail-order movie rental service. More than 12,000 movies and television episodes from Netflix can now be watched immediately on a PC that has Windows Media Center and runs Windows Vista Home Premium or Ultimate. Of course, you have to be a Netflix member first, but once you are, all you have to do is launch your Windows Media Center and click on the “Netflix” tile under “TV+Movies” to start watching