Page 1 of Proline 2000 Hack

I recently purchased a Proline 2000 and the first thing I did was look for a hack. The one I found at Reviewer works great, but is supposed to be for one disc only. I assumed this meant I would have to punch in the code every time I played a Region 1 disc. However, I have since watched 3 more Region 1 films without re-entering the code. Am I missing something.