Hi Everyone...With the help of trial and error, I have made some
progress. I modified my hello.rb file by adding some ruby code that I
found on the web. The added code contained an analysis of a stock
using a yahoo website. (Actually, my interest in ruby is to do some of
my own stock market analysis). In the code was a request to enter a
stock symbol. This request kept the ruby window (with the "Hello
World" statement) on my desktop as it waited for me to enter a stock
symbol. Once I entered the symbol, a long calculation was made and
then the ruby window disappeared. Thus, one way to keep the window in
view is to add a request for input. I suppose a pause statement might
also work.

(1)Is there another way to keep the window in
view until I enter an exit command?

(2) I still have the problem that the window consists of white
characters on a black background. Is there a ruby command to change
the window or create another window with features that I can control?

Thanks for your help. Yahdoco