Howdy,
I was reading
this thread and noticed afterwards that the font in google.com searches had become unreadable. On page two "thatotheridiot" posted Windows Media Player shortcuts. I wanted to see if they would work while I was exploring the internet via IE6. Turned out that while in WMP crtl+"some letter" adjust the font size. I didn't realize it was changed until I had left that post. I was completely stumped. I thought I had changed the default font size of all windows. So after I posted this I was looking through the View tab and found "text size". It was quite comical that my problem was so easy to solve. In the past I had dealt with this for a long time before it somehow fixed itself. By the way, in IE7 press alt to see the File, Edit, View, etc. tabs. Have a good one.