Updating a String

I am using a Label. My Property Change Event check is working - only 2 issues:

  1. When the operator types a new message that happens to be exactly the same length (i.e. no change in String.LEN) then it won’t update.
  2. The old text is still in cache - when I type long text it displays. Then type a short text, I can see the new short text, but after the short text stops, the old long text is still showing.

Any ideas on how to “refresh” the string? Thanks!