How come, in nintendulator, in the "cpu trace" window it sometimes gets stuck in a loop. i try to get to #0000 but it will stall on like #0a00 and loop back up to #0b00 and continue this over and over again; never reaching the destination. I use home and end keys first, then page up and page down, then arrow up and arrow down keys to arrive at #0000. But, somtimes it never makes it to #0000. What am i doing wrong? This has been happening a lot.