>Just guessing here... Window Vista/7 use a different system font. It's probably causing the issue. So, you can change that in display settings

But then this could have, historically, been done by any user on any old version of Windows.

IOW, the way the text in a messagebox wraps is out of our control, always has been, and isn't something we should worry about. We can only insert carriage returns where we want them.