Hi evergreen,
Try this. Click Tools and Internet Options. On the General tab, under Appearance, click Accessibility. In the Formatting section, click to check (place a tick) the option Ignore font sizes specified on webpages and then click OK twice.
Try holding down the CTRL key and scrolling with the wheel. This is a shortcut to the Zoom function, found in all major browsers.
Just to add to others' suggestions;
Hold CTRL & press the + key to enlarge and CTRL & - to reduce.