On Fri, 07 Dec 2007 12:03:29 +0000, Invisible <voi### [at] devnull> wrote:

>Anybody have theories about why it's doing this? Is it likely to be fixable?

Most LCD assemblies are constructed of a sandwich of circuit board, two elastomer
conductors and the LCD itself.  The elastomer conductors, consisting of layers of
conductive and non-conductive
materials, provide conductivity between contacts on the circuit board and contacts on
the LCD itself.  The sandwich of circuit board, elastomer conductors and LCD is
typically held together by
pressure from the metal housing surrounding the LCD.  There are usually tabs on the
metal housing that are bent over or twisted to hold the circuit board in place.

With all this being said, what typically causes the problem you've described is bad
conductivity between the circuit board and LCD.  They can sometimes be fixed, but it
is a frustrating task.  It is
typically more cost effective to just replace the LCD assembly, and it'll save your
sanity.

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