I'm currently using 2012-04-10 client. But for experimental purpose, I'm trying to test other clients when I notice that all of them are running but only a small window.
I don't think the problem is on the packet_db.txt and mmo.h. I did try all of my other clients but same result as I mentioned. Fortunately, my 2012-04-10 client is working fine. How about you? What client are you currently using?