This patch enables you to continue playing after the blank screen. This blank screen occurs after you have made your hero and are looking down at a village with a bald man. He will turn to face you and then the screen will blank out. This is yet again, SE trying to block out pirates with some sort of protection. To enable this to work properly, copy over your ROM into the folder where the items are located and rename the DQ IX ROM to cvn-dq9.nds and double click the .BAT file. Wait until the window closes which is patching it and copy it back over and it should work.MAKE SURE YOU DO NOT USE A FAKE BRICK ROM WITH THIS, OR ELSE IT WILL NOT WORK AND WILL (OBVIOUSLY) BRICK YOUR DS!