On Tue, 25 Mar 2008 11:54:32 -0500, chrisv
<chrisv@nospam.invalid> wrote:

>Calab wrote:
>
>><void.no.spam.com@gmail.com> wrote in message
>>news:a5be52d6-87ee-4f90-a0dc-8f06257e53a9@8g2000hse.googlegroups.com...
>>> Someone just gave me a 19" CRT monitor, and I noticed a geometry
>>> problem with it. It seems that the top edge and bottom edge of the
>>> image are not parallel with the top and bottom of the monitor. The
>>> right side of the top edge and bottom edge of the image touch the top
>>> and bottom of the screen, but the left side of the top edge and bottom
>>> edge are a few millimeters from touching the top and bottom of the
>>> screen.
>>
>>CRT monitors are designed to have about a 1/4 inch of blank display all the
>>way around the picture.
>
>Since when? Ideally, the image shoud cover 100% of the usable area.
>(Of course, the tube itself is larger than that.)
>
>>Set it this way and you probably won't notice the misalignment.
>
>Not sure why not...

It depends on the cause, on a typical CRT the last few
percent of the usable area is geometrically distorted. Some
would rather have the entire display bigger by using this
area (including a monitor manufacturer selling by # of
inches who doesn't want to irk the customer by not using as
much of the space as possible) but some would rather leave a
small border to keep geometry correct.

Maybe a better question is why fool around with an old CRT
monitor with problems - probably why it was given away.

There might be an adjustment inside but without a service
manual all one can do is open it and see what they see, or
pay a tech to look at it but I hardly think it worthwhile
for an old 19" CRT.