I have noticed that if i am using a Google font and then install that font on my machine (so i can do mock-ups on Photoshop etc), it stops rendering properly in Firefox and Chrome.
Here is what this site looks like after i have installed "Oswald" on my machine.
Code:
http://flic.kr/p/dbhUi9
(couldn't insert image so you'll have to cut & paste - sorry!)
Is there a way to fix this?