Calculator

[ChiaPet]

Ooops, indeed I missed a line with the copy & paste.  Rather obvious and simple to fix.

I hope everyone sees the silliness of the manual positioning of buttons.  It's difficult to 
keep boxes lined up, esp. during development when one is resizing and repositioning
them.  What if one decides to use a different screen resolution?  Again it's a pain to keep
them consistent in position and style.



@ChiaPet, Beautiful elegance!

Too bad you left this Data Line out:
DATA Copy,Paste, <Back, RND 

I think those are missing items from Case Is code. I see your _delay .2 is later.