			XGRANITE

The purpose of this program is to put up a screen background
which looks like granite. However, I discovered that the rand()
function on VMS is not very random in the low-order bits and
that the pattern looked more like wood grain paneling. As a
result, there is now a switch "-grain" which uses the low
bits, and the default is to use the high bits, which should
be more as its author intended.


	Trevor Taylor
	May-89
