how to pass the first chapter? I don't know the function of the ball.where should the light launch?

So I found that interacting with the panels and slider will raise up different black tiles when setting the slider to 0, so I turned the panel on the wall green and set the slider to 0, but the panel on the wall does nothing even when I set the slider to 0. The cube that redirects the light beams is still trapped behind the black tile no matter what panels turn green or if they stay red when I mess with the slider and I'm stuck in the cyan colored room because of this. Am I doing something wrong or is thi...

Anyone else have a problem with the last achievement not being given?

When hitting tab for instructions it indicates using the "take" key to pick up boxes. Input methods show no take button, just "use". Tried that to no avail. Also there isn't a cursor I can see. Please advise.

Will there be a discounted price rate for those who purchased the early release version?