Ok, first of all knoppix is the default name for user in knoppix, make sure that the little flag by your clock is US (I am assuming you are American or using an english keyboard), language settings effect the keyboard layout. If the fag says de then your typing in German, which is default. You need to click the flag to change it to english or better yet r click go to configure language, select english then disable keyboard layouts, this will fix it for good. The text you type in the box is always invisible so even though you don't see it, you are still typing.