I just purchsed a IIIxe with a good price and quite happy with it.
However, good time ends suddenly. When I was taking a note (a formula)
in the library with Diddlebug, I found that I cannot write a small
character accurately. The tiny "2" for square always mess itself. For
test, I tapped the screen in DiddleBug randomly (dot-dot-dot...) and
surprisingly found that some dots just don't show up and some end up with
a long line, not just random points I expected! Am I using a defective