Have I got the unwanted record for having the longest-lasting bug that
cannot be fixed? I refer to the bug that I reported many weeks ago, in
which using the right-click mouse to measure a distance across the
screen leaves a trail of dots behind that stay until a screen refresh is
forced. If you don't get the mouse exactly right, this trail can extend
anywhere, leaving a confused display.

I have tried this on three different computers and it does the same
'trick' on each.

Lawrence Harris