what i do, to temporarily fix it, is to just go to Display Properties, then click in the menu another saved theme like Windows Classic, then click back on My Favorite Theme (which is almost the same thing as Windows Classic)..I don't use the theme manager service. The question is...why does it do this? If I knew then maybe I can stop it from changing the font size temporarily. What happens is, after I use the computer for awhile, *something* will happen, and the font size will turn smaller..Then as I use it more, it will gradually turn font sizes smaller one by one, until it's a super tiny font size.. Really awkward problem..Only affects the title bar though..not the font in the taskbar.. If anyone has any idea, it would help..