My keyboard is totally messed up. When I press some key I get series of letters and signs on the screen. For example if I press L key I get hjki9 sequence. This is completely strange and I do not know what has happened here. Can you shed some light on this mystery?
There can be only two explanations for such behavior. Bad keyboard or corrupted keyboard driver. Connect this keyboard to another computer and see what happens. If it is working then you will have to reinstall driver (from Windows Installation CD). If it is acting the same way on another computer then it is time to buy new keyboard.