How do I adjust the screws on a Rubik's Cube?

From CubeOosan

You have to have a certain type of rubiks cube, what you have to do is take it apart, then pop up the plastic panel on the center cubes, and there should be a screw under there.

To take the cube apart, do a quarter turn, then put something flat under the edge peice and pry it up.

If there is no plastic panel on you center peice, you can wedge something between the spring and the center peice over night and it should slacken it a bit.

--Samsta