See this. Suddenly this forum appearance messed up in my computer. Fonts became bigger. Now it is annoying to read this forum. How to fix this?
My first guess would be that the screen resoulutions has been changed. This usually happens after updating videocard drivers. You can fix that by right-clicking on your desktop, then selecting a higher resoultion. My second guess would be that you (or something else), has changed the fonts used in your browser. You can check that in the browser properties.