[From Bill Powers (2004.05.16.1213 MST)]
I asked Mary to look at the display and she saw bumps at both extremes of
the adustment. I said, "No, wait a minute -- " and then noticed that I was
seeing _dents_ both ways, instead of seeing bumps at one extreme and dents
at the other. I'll swear the latter is what I was seeing before. Last I
looked, it was dents at either extreme. I haven't done it long enough to
see if the bumps come back,or how they behave.
This is strange.
Best,
Bill P.