"Sparkles" with GeForce Ti4200... Help?

I have a PC with a GeForce Ti4200 that I use with a KVM DVI/USB switch to
share an LCD monitor, USB keyboard and mouse that I use with another PC with
an ATI X800 XT Platinum.

With my PC with the GeForce (call it my "work" PC) I get "sparkles" in
graphic images. Essentially they almost look like LCD spots that are always
on (white). However, when I switch to my PC with my ATI card (call it my
"game" PC) everything looks fine when viewing the same image. The ATI
control panel has an option for "Alternate DVI mode" and "Reduce frequency
for DVI" which has eliminated any corruption that might have existed (next
to none).

I have tried swapping cables between the two PC's and to the monitor, and
tried all new cables altogether with no success. Same thing happens with
another KVM switch for DVI and PS/2 devices. So I feel it has to do with the
GeForce video card.

Has anyone had any issues like this and/or how to fix it?

If I can't eliminate it I may have to go with an ATI card since it seems to
work fine on my other PC. I hate to spend the money however, and my Ti4200
works just fine otherwise.

Thanks for any assistance!

Overclocking too far will cause that, if it's overclocked back it off a bit.
It could have been pushed too far and permanently damaged. Overheating
might also cause that. Or the card could just be getting bad.

Mike

"HockeyTownUSA" <magma.RemoveThis@killspam.comcast.net> wrote in message
news:VbCdnT-5XveUCeffRVn-1A@comcast.com...
 >I have a PC with a GeForce Ti4200 that I use with a KVM DVI/USB switch to
 >share an LCD monitor, USB keyboard and mouse that I use with another PC
 >with an ATI X800 XT Platinum.
 >
 > With my PC with the GeForce (call it my "work" PC) I get "sparkles" in
 > graphic images. Essentially they almost look like LCD spots that are
 > always on (white). However, when I switch to my PC with my ATI card (call
 > it my "game" PC) everything looks fine when viewing the same image. The
 > ATI control panel has an option for "Alternate DVI mode" and "Reduce
 > frequency for DVI" which has eliminated any corruption that might have
 > existed (next to none).
 >
 > I have tried swapping cables between the two PC's and to the monitor, and
 > tried all new cables altogether with no success. Same thing happens with
 > another KVM switch for DVI and PS/2 devices. So I feel it has to do with
 > the GeForce video card.
 >
 > Has anyone had any issues like this and/or how to fix it?
 >
 > If I can't eliminate it I may have to go with an ATI card since it seems
 > to work fine on my other PC. I hate to spend the money however, and my
 > Ti4200 works just fine otherwise.
 >
 > Thanks for any assistance!
 ><!-- ~MESSAGE_AFTER~ -->