|  | Installation:  This is just a small, simple .exe file.  
  You can put it anywhere and run it.  I usually put it on the desktop.  
  I also make a shortcut to it then drag it onto the Windows "Quick Launch" 
  toolbar, next to the "Start" button...  |  | |  | 
New option limits itself to one window, so you don't wind up with several 
instances of the calculator. |  | 
Improved keyboard input and dialog box help that lists keyboard commands. |  | 
Window can be "scaled" to make it bigger and it now remembers it's last setting. |  | 
Registry location has changed from the default to "\Rayslogic" (so it may not 
remember your settings from the previous version). |  |