So my work xp box has AA on fonts and my home 98 doesn’t?
Not quite, but in Windows XP, there are two different kinds of anti-aliasing that you can choose between, Standard and ClearType. The one on the left (in the image) is Standard, on the right is ClearType.
You can try changing your Windows anti-aliasing (under Screen properties -> Appearance -> Effects [or something like that, I’m translating the names from the Danish version]) and see if that helps.
But this change should affect all of Windows, not just certain browsers… You say it’s in FireFox that it looks like the right side, and in IE like the left side? Or the other way around?
Just checked your site – they look exactly the same in my IE and FireFox, both with Standard anti-aliasing and with ClearType anti-aliasing (I’m on XP too). I do wonder what could cause the two browsers to display them differently…