......."I haven't had this problem. The only explanation I can think of is that your keyboard layout settings are off, and when you think you're typing a 7, for example, you're actually typing a &. I don't know."......
OK. Step asides, ladies and germs, this am gonna be sumpin'. Why not tell the lad (or lassie) the terrible truth? HEY! Guess what? Your electricity is coming in backwards, causing the monitor to display erroneous dataglobs and neferious innuendos - cataclysmic horrors all. To correct this problem, simply turn your building around 180 degrees, or move to Cincinnatti.
Old Tom Bombadil, Bombadillo, Arkansas