When your IE browser is open, there should be a box just above the time at lower right on the screen. It normally says 100%. If it got set to a smaller number, the text would be smaller for all web browsing. Click on this box and it should cycle through several magnifications and finally come up 100$. You can also click on the small down-arrow next to the box and select the magnification you want. You may have inadvertently set this to a small number.

This is a very handy tool when browsing web sites that have small text in one of their windows. It's temporary, and you can with two clicks jump up to 150% of normal. One more click puts you back to 100%.