Hi Tom,

re:
> "as far as I know there isn't any way for a program"
> Have a look at it, Michael" !

I did and it doesn't do that either. It measures pixels and shows inches just by a fixed conversion factor of 96 dpi. On my system here when it says 5 inches it's actually around 4 1/2 inches.

So it doesn't know your physical screen size automatically, but looks like it has a calibration method so you can get it set up for your environment.

- Michael