Hi,
have you synced your machine yet? To do this open the settings charm and then click change pc settings. Next you need to click 'Sync your settings' and I'm pretty sure this is where your problem lies. If your clicking on it for the first time you'll need to 'Trust this machine' which is basically a way of making sure your not a scammer of some sort. Just follow the instructions and you should be fine.
Any problems post back.