Abstract of INFO-MAC archived encoded Mac binary file
   'info/hdwr/lcd-screen-tester.hqx'
  Uploaded 06/13/1997   14546 bytes

From: ktappe@assocgraphics.com
Subject: LCD Screen Tester


LCD Screen Tester.sit.hqx

This is a small, useful application for people with active matrix
PowerBooks who would like to test their screen for stuck pixels. It
floods your screen with red, green, blue, white and black; to make the
culprit stuck pixel (or subpixel) show its ugly head. This is so you can
show your Apple Dealer that there is a problem with your screen and that
it needs to be replaced (I think you need five pixels to be stuck for
the replacement, but don’t take that number to heart). This will only be
useful for people with active matrix screens…