Well, I downloaded Knight Online to my computer, got it installed and everything. However, when I went to patch the game to 1506 it said Extract Failed. I tried reinstalling the entire game, and even manually downloading patch 1506 but when I try to extract the files it won't let me extract one file: co_seed_helper_us.uif. It lets me extract all the other patches manually, just not this one. I'm open to any suggestions that you guys might have.