Comment 36 for bug 556782

I said:

> The corruption does disappear when I slide the window containing the
> corruption onto either of the other monitors,

Today, I have some corruption (on the zero glyph in a particular font at
a particular size) that stays corrupt when I slide the Firefox window
from the Right monitor to the Middle monitor (which crosses from the
first FireMV to the second). But this corruption vanishes when I keep
sliding from the Middle to the Left monitor, both of which are on the
same FireMV card. (And the corruption returns when I slide the window
back to Middle or to Right.) I don't think this is a hardware problem
peculiar to one of the cards.