at the bottom of the tutorial I think it alters the DPI, so if the top bit alters it, try changing it back, and hopefully the text stays
There is another program for vision/hearing/etc impared that could potentially help you, even if you aren't any of those. It sometimes lets you alter things you otherwise could not, I just forget the name of it in windows 7, I'll have to get back to you on what I'm talking about.