bug#13106: Graphical glitches in Cocoa Emacs

[Bjarte Johansen <bjo013@student.uib.no>]

Hi,
I have some graphical problems in my emacs installation. 

I will most of the time In Cocoa Emacs see graphical glitches on the text and other places in the window. Usually it manifests by turning a pixel or two a different colour then what it is supposed to be. Sometimes there will be a line, It is usually in areas of high change. I have a clock on the right side of the mode line. After some time some of the pixels around the characters will turn green. It is most often (if not all the time) on the right side of the screen, as if there is a "off-by-one"-error. 

Other times I will also see a darker colour next to the right fringe. This colour is the same as the colour I have for the mode line and cursor. 

In the package list there will be some small areas on top of the buffer that does not change to the darker colour I have set it should have and will keep the background colour. 

The version I have been using is Emacs 24.2, but I have had this problem since Emacs 23.* (or when started using OS X).

Thank you for your time.

Regards,
Bjarte Johansen