Internet Explorer Font Problems. Please Help

[Rillzen]

Well last night I was going through the message boards and i don't know how it happened but suddenly all the words on my screen went from a normal size 10(ish) font up to a size 20(ish) font. I hated this because it made you have to scroll after every 8 words you read. I restarted my computer and all of that and left it alone. I even checked for viruses. I'm on windows me with internet explorer (whatever the newest version is). Anyone have any ideas on how to fix it?