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Hello,

While you are at it, try another keyboard and mouse as well.

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"Fatfreek" <> wrote in message
news: ...
> It doesn't happen every day. When it does I have no choice but to close
> all
> apps and shut it down. I'm using Win2k Pro with 1.5 Gb Ram. As I write
> this, no problems.
>
> Two words can describe this -- vertical jumpies. In any open application,
> move the mouse to a window or frame. If that window is tall enough to have
> a
> vertical slider, then the jumping starts. It's like some invisible person
> has control of that slider. You mouse to the vertical slider button,
> click
> and hold and drag (try, anyway) down -- that's when it proceeds to jump
> back
> to the top of the page. It doesn't, however, stay there. If your mouse
> focus remains in that window, the jumping up-and-down continues, lika a
> kid
> on a mattress.
>
> If I need to click some button at the bottom of that page, forget it.
>
> All applications are vulnerable. Even my ZtreeWin, which is a console
> application, is affected.
>
> I think I've ruled out a virus. I've scanned my system with Avira several
> times with nothing found.
>
> I've made a few downward adjustments to my display driver settings.
>
> I'll next take the computer outdoors where I use my compressed air hose
> (carefully) blowing out all dust. I did this some 6 months ago.
>
> I'll remove my display card and blow out the socket as well, then reseat
> it.
>
> Len
>
>
>