As Scotgal indicates, Ctrl+ will change the size of everything in your web browser.
If you want to change things on your display in general, try dropping the resolution down a bit. Right-click on the desktop and select 'Properties' and then 'Settings'. Move the 'screen area' slider to the left a bit. Click 'Apply' and 'OK'.
Chris, I've done that, and the type that I put into the search engine is bigger, but the type on AB is still the same (small) size.
I wonder why my keyboard doesn't have a numeric keypad? Do ya think I've been sold a pup? Just my luck. Mind you, it should be expected with a name like chappie .......