[no subject]

[RG@MIT-AI]

  THE NEW SPLIT SCREEN MODE OFTEN LEAVES A LINE OF GARBAGE AROUND
BETWEEN THE TOP AND BOTTOM WINDOWS.  IN OTHER WORDS, THE REGION OF
THE SCREEN BETWEEN THE TOP AND BOTTOM WINDOWS IS NOT CLEARED OUT,
AND SO "SHOWS THROUGH" WHAT EVER WINDOW IS BEHIND.  
  THE CURRENT EFFECT IS VERY ANNOYING.  POSSIBLE FIXES ARE ASSURING
THE TOP AND BOTTOM WINDOWS ABUT CLOSELY (BUT THEN IT MIGHT HAVE TO
WORRY MORE ABOUT FRATIONAL LINES) OR AUTOMATICALLY CLEARING THE
AREA BETWEEN THE WINDOWS (THIS PROBABLY WORKS OK WHEN CNTRL-X 2 IS
FIRST DONE, BUT MAY NOT BE AS EASY WHEN RESUMING THE EDITOR INTO
A TWO-WINDOW STATE.).