I have also seen that caused by a loose video card or cable.
Even close proximity to a magnet (speakers) can cause interference.
--
A Professional Amateur...If anyone knew it all, none of would be here!
CarGodZeroOne@hotmail.com
Change Alpha to Numeric to reply
"Albert" <mrz@telus.net> wrote in message
news:#TQipwssIHA.552@TK2MSFTNGP06.phx.gbl...
> I left my computer running during the night and noted that the following
> morning there were a few flashing horizontal lines next to the mouse
> pointer (something like TV scan lines) which followed the mouse pointer as
> the pointer moved. Also discovered that all my video players (Media
> Player, Real Player, Nero) now show corrupted videos (screen is covered
> by multiple horiziontal flickering lines of varying colour and thickness)
> and the colours are bleeding through while playing spider solitaire (from
> underlying layer to top card). No new software was installed during the
> time the computerwas operating.
>
> and
>
> I resolved the mouse pointer issue by changing the pointer to a black one.
>
> Any help to fix it.
>
> Am running Vista Home Premium SP1 with a ATI AGP Radeon 9700 pro with the
> 7-4 driver (cannot not use later drivers because they will not install
> (infamous Code 43 error) and IE 8 beta. In an attempt to remedy the
> problem I have done the following:
>
> changed my mouse from a P/S2 to a USB
>
> complete virus, adware, etc scan
>
> complete uninstall and re-install of the ATI driver and software.
>
> and
>
> All works well when I operate the computer in safe mode or when I
> uninstalled the ATI driver and use the basic VGA driver. I have also note
> that during the boot-up process the VGA screen appears corrupted but
> clears up when windows starts.
>
> I am guessing that my computer has a corrupted file that is interfering
> with the ATI driver.
>
>
>