I am trying to install Minecraft. I click on Minecraft.net, clock "get Minecraft", click "computer" on how I want to play, and then click "Minecraft windows 10". Everything worked well up until this point...Then when I get to the page to buy, I click on "Starter collection" and then "buy". When I click that button my screen dims and nothing happens. It won't pop up a screen for payment or anything. I have tried to do this multiple times, but it just dims my screen. I really want to buy Minecraft.