[Alneyan]

To the best of my knowledge, there are other kinds of keys around; at least, I think the first print was 4-4-4-4 (my own is 5-4-4-3). At any rate, your key should work once you are past the first time it asks for it. If it was invalid, the game would have complained there.

There might have been interference from the patchs if you had applied the patch before typing the key. It did work for me when I went straight for 2.14 though. Did you apply another patch (2.13 for example) instead of 2.14? Did you put the game in the same repertory as the demo? That would be unlikely, but your problem seems quite strange.

The 2.14 patch will work fine as a direct patch, assuming you are under Windows. There is a problem with the Mac Version (and possibly others) though, as Kristoffer pointed out in the 2.14 thread. Do you use any OS except Windows? If so, it might be the problem.