It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

I have a large monitor, 49-inches, capable of 5120 by 1440. I have tried running this game in both full screen and windows. I have tried 5120 by 1440 and lower resolutions. No matter what I do, the top of the screen is always cut off, making it impossible to even finish the tutorial.

Any suggestions?