Greetings all,

My Viewsonic PT813 21" monitor is starting to act up. The problem manifests
itself as very thin rolling lines and occasional screen shaking. After some
monitor switching, I have established that it is not my video card(Matrox
G400 Max)that is source of the problem. The issue seems to be one of refresh
rate; it performs pretty well set to 1280x1024 @ 60Hz, but not at 85Hz,
which is the rate I have been using. The monitor is rated to run at 100Hz
set to that resolution. Along these same lines, I plugged this monitor into
another machine and was doing some DOs-level work for several hours and the
display was crisp and clear and without jitter. Dos is by default, I
believe, 640x480 at some low refresh rate, probably 60Hz.

Does anyone know what monitor component this issue might point to, and what
it might cost to fix it? Will repair in this case be cost effective? Since I
do video work and I have to stare at my screen 8+ hours a day I don't want
to buy one of the second-rate $300-$400 monitors.

I'm afraid I'm looking at a new monitor purchase. I am quite disappointed in
this Viewsonic it is just three years old. I have a 17" five-year-old Wyse
WY-17PS that is, and always has been, as crisp and color-rich as the
Viewsonic. If I thought I could find a high-end 21" Wyse somewhere I would
pobably buy one. I suppose I might buy a Hitachi 828.

                                TIA,
                                Glenn Miller

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