Indexing confusion

[Michael Grossbach]

Assume a matrix
X = [1, 2; 3, 4];
To produce, say, the second element of the first row one would issue
X(1,2)
ans = 2
To obtain all combinations of elements in X I then use
fullfact(size(X))
ans =
   1   1
   1   2
   2   1
   2   2

To my confusion,
X(fullfact(size(X)))

produces
ans =
   1   1
   1   3
   3   1
   3   3

instead of the expected
ans =
   1
   2
   3
   4
Is this intended behaviour and am I missing something?

Using Octave 3.0 on Windows Vista.

Michael