Here's an example of how difficult it is to test sizing of fonts in graphical user interfaces:

Above is what occurred when Shannon's game ran on Shannon's computer.		Above is what happened when Shannon's game ran on Pat's computer.  The caption cut into the grid, and the form didn't seem wide enough.		Another view of Shannon's game on Pat's computer.  Same problems.		Pat's game on Shannon's computer.  The "New Game" button isn't visible.

It turns out that Shannon was using large fonts--and her screen was using 120 DPI (dots per inch), and Pat was using "normal" font size--with a screen density of 96 DPI.

On Shannon's computer, the menu of Pat's game wrapped to two lines, thus making the form so small that the "New Game" button wasn't visible.

Why is Shannon's game malformed on Pat's screen?  Bottom line is, in a real application, you need to test everything with large and small fonts, while using either 96 DPI and 120 DPI screen settings.

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