The book example of this array has an error when I try to run it.
int[][] x = { { 2, 3 }, { 4, 5 }, { 6, 7 } };
error:
Array initializers can only be used in a variable or field initializer. Try using a new expression instead.

Ok, after looking at the MSDN, I think it should look like:
int[,] x = new int[3, 2];

Is the book example above(up top) even correct?