Colour remnants from previous program

[Gilles Roy]

If I start screen, inside of some other terminal program running in full 
screen mode, and then I start mutt, when I exit mutt there is some 
colour left on the screen (from status bars), at the very edge on the 
right. You can see two blue blocks and one red block in the attached 
screenshot.

These blocks seem to be too small to actually fit a character in them.  
Could that have anything to do with it? The problem doesn't occur if I 
used the terminal programe (gnome-terminal or xfce4-terminal) by itself, 
only when it's done through screen.

Any ideas what is causing this?

Thanks,
Gilles

Screenshot.png
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