Are you using a laptop Jean? I have recently moved to a laptop instead of a PC and the size of the font changes all the time - I am obviously leaning on a key by accident and it took me ages to get it back to the right size again. If the type goes to large you can press Ctrl - and that reduces it again.
I too have spent hours squinting at tiny type tring to decipher it until I learnt how to change it.
Yes Harley. Got rid of the cumbersome PC and would never go back. I only once had the problem before, and I changed years ago. Methinks it's the new Windows 8.
Love my tablet.. that's a notebook type computer not a medication, lol. OK so it's no good for writing an essay, but I can read and watch, play games, and do an awful lot on it - all in the comfort of my own armchair.
Is the font tiny just here or generally. If just here then go into Options scroll down and it allows you to choose font size and style. Generally ctrl along with + will make things bigger in the browser.