Screen Resolutions

Okay, so there's this thing in my computer when you do a certain combination of things at once it automatically does something to your computer. All computers have this, they're called shortcut keys: ctrl+alt+del and stuff like that. The problem with shortcut keys is when you don't know what they are, and you manage to somehow do them regardless of the fact that you have no idea what it is that you are doing.

The short-cut key in question here is the screen resolution on the Internet Explorer. For some reason, sometimes, when I have my finger on the scroll bar of the mouse-pad block on the laptop and move a different finger to move the cursor the images in the open window get smaller or larger. I cannot seem to figure out how to do this on purpose. It doesn't change all windows or tabs or anything like that, just the one that is upfront at the time. Each time I do this it is purely by accident, and so I end up with a Blogspot screen that is so microscopic I need a a magnifying glass to read, and a Facebook screen that is magnified beyond belief, Internet Explorer large print addition.

I've tried all sorts of combinations, finger placements, and strategic timing, and yet I cannot figure out the way to alter said resolutions intentionally. Computer people: HELP!

Squinting,
Maddie

Currently hearing: The Bare Naked Ladies' "Light up My Room"
Currently reading: Robert A. Heinlein's "The moon is a Harsh Mistress"

P.S.
"La-daaaa da-da-daaaaaaa-aaahhhh"