Meteor minimongo insert method not working

I was following the meteor tutorial from meteortips and I got to the part where you create a collection in the browser's console. Creating the collection works, but it doesn't let me insert anything into it.(PlayersList = new Meteor.Collection('players');)

Please see below:

PlayersList.insert({ name: 'Alex', score: 42 });
"rpPamgZEZM9opCzHz"
debug.js:41 insert failed: Method not found

What's weirder is that I even get back the hash as if the insert worked. Typing PlayersList.find().fetch(); returns an empty array :(

I'm using the latest version of Meteor on Windows 8.1 with MongoDB version 2.6

If anybody could help me, I would be very thankful :)