new outgoing messages page setup

[Colleen]

Hi,
Just yesterday when I go to compose a new outgoing message the background on
my page is showing grids and when I type the font is yellow, even though the
font is showing black in the font box above. Every new message shows up that
way. I have tried to find out how to rid the background as well but the
background is not showing up anywhere is the set up but I can see it on
screen. Reveal codes does not show this background either.
This is quite bizarre. I don't recall changing any settings.
Colleen