I bought a Dell Latitude E4300 a couple of years ago, refurbished, and I've had intermittent typing problems with it. The most common is that when I'm typing, for no reason whatsoever, the keyboard will act as if I've backspaced or tabbed and it will skip to a totally different part of the text. I have to constantly go back and take out characters from a word I think I'm typing HERE but which shows up, say, back in the middle of the word "skip" in this text. (It just did that very thing...started to type the rest of "started" in the middle of "just.") It's always done a little of this, and at first I thought it was a problem with Word...but now it does the same thing ALL THE TIME. Any way I can fix this, or is a new machine the only answer?