FG> I have a colour scheme with a white-background header section and a 
FG> black-background text section. However, at some points the black from the 
FG> text "shines through" the header, leaving some black
spots. When I press 
FG> Alt-L followed by Enter the black spots disappear.

I'm not really sure what you're saying here, but a couple of times I have
been fooled into tracking down a bug with the display, that turned out to
be the mouse cursor!  BFN.  Paul.
@EOT:

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