You can enable ClearType, used by IE as default. You need to enable ClearType system wide for all programs to make other programs like Firefox use it. <br /> XP: Control Panel > Display > Appearance > Effects: "Use the following method to smooth edges of screen fonts" [http://www.microsoft.com/typography/cleartype/tuner/tune.aspx Windows ClearType Tuner] (online version only works with IE) <br /> [http://www.microsoft.com/typography/ClearTypeInfo.mspx Microsoft typography: ClearType information] <br /> http://support.microsoft.com/kb/306527

If you have display problems in the Firefox 4 beta version then try to disable hardware acceleration: * Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"