bizarre xterm bug?

[John D. McCalpin]

With some fonts, the xterm program refuses to scroll underscore
characters off of the last line of the window --- it just leaves them
there on the bottom line!
When the window redraws (for whatever reason) it puts them in the
right place.
This error occurs with the courier-bold.## family of fonts, but not
with most other fonts --- I have not checked them exhaustively!

Has anyone else seen this?  I like these fonts, but it is irritating
to have them leave characters on the bottom line of the window!

(I am running 3.3.1)
--
John D. McCalpin			mccalpin at perelandra.cms.udel.edu
Assistant Professor			mccalpin at brahms.udel.edu
College of Marine Studies, U. Del.	J.MCCALPIN/OMNET