Windows defaut font gets messed up

[Dave Beck]

Hey,

First I gotta say that I love this mailing list because people are so
helpful, so thanks everybody for making it a great list. Now hopefully that
doesn't jinx me and somebody can help me out with this problem I am having:

I have a potential customer who just reported to me that in my standalone
rev app some of the text runs off the screen. He sent me a screen shot and
basically what is happening is that all the text is being displayed in the
wrong font. I have it set to the default font for Windows (MS Sans Serif I
believe?), and on all computers I have tested it on the text shows up fine
as it does on mine. But on his computer it shows up in a different font that
is considerably bigger and the result is that many of the fields have text
that runs beyond their bounds, all of the buttons look funny, and basically
the whole app looks aweful.

What is the deal? I thought everybody would have the default font. He is
running Windows XP Pro. How do I avoid this problem? Can I install MS Sans
Serif with my app, or is the better solution to change to another font which
EVERYBODY has? Obviously I can't leave things the way they are, as I'm
surprised he is even still using my software from the looks of the screen
shot he sent me.

Any help would be very much appreciated. Thanks in advance.

Dave