Internet Explorer Emulator

Not sure why either IETab addon would work, seeing as they actually use IE. The way I see it there's a few options:
a) reset all IE options to default
b) start IE in safe mode (try “iexplore -extoff” in the run box)
c) reinstall IE

There are a bunch of things that have had the same glitch like IE has since I changed the font on this computer.
They just don't display anything.
So, somehow don't think those will help.
Anyone know what GameLauncher, McAfee, and Internet Explorer have in common?
Because those are the things most notably that go white.