Underscores behind values on display after faulty ':=' command
If one uses the ':=' command and then enter a faulty or incomplete command an error screen is displayed(which has a typo) stating the reason for the incorrect input.
However after one presses enter to acknowledge the error screen, one is left with 'underscores' behind the values at the bottom of the main display.
Redrawing the screen does not remove it. Only saving and restore does.
P.S. I hope it hasn't been fixed in prerelease 17 and I'm wasting your time.
P.P.S. Actually sometimes redrawing the screen does take it away.