I'm having problems with the 'down arrow' button. I use it continuously in Trainz and everything else on my computer, since it changes your camera view in Trainz. All the other buttons work, also. I've already replaced my keyboard once, and I don't want to do that again. One other thing to note is that I had the same problem yesterday, that time with the 'P' button, but I managed to solve the problem after randomly pushing buttons after restarting the computer. And like yesterday, I have the same cat in my lap, whose paws occasionally cover up a button or two, which might be the stem of the problem. I don't know if she pushed the 'Ctrl', 'Alt', or some other button, but that could have caused the trouble yesterday. She could have caused this problem, but I don't know for certain. Can someone help me?