I have the same problem with ATI and a X1600 AGP card.
ATI is TOTALLY useless since AMD bought them! (Note to self, never buy ATI
again) They have given me some of the most lame and ridiculous suggestions.
My card also stopped working in August and I have spent hours working on it.
First the ATI uninstall program is VERY sloppy. After a COMPLETE ATI
uninstall there were still 650mb of ATI files on my hard drive!
As I see it there is is a couple problems. First ATI is totally out of sync
with Microsoft and will not admit it. They release drivers that are poorly
written and sloppy re-installation and removal.
The problem seems to affect AGP cards on slight older systems. I could be
wrong but my computer with a PCIE card works fine.
In August Microsoft "pushed" a download called SilverLight. My computer has
never worked right since. Naturally to even ask MS the want 59 BUCKS. I have
a funny feeling this Silver Light program may have changed the way vista
supports AGP cards, seeing as the same program works fine with my computer
with a PCIE card.
This does NOT let ATI off the hook. It the want to be the leader of video
cards then they MUST know about Silverlight and subsequently write fixes for
their drivers! The problem may have been caused by SilverLight, but it is the
ATI card that is not working.
Does this sound familiar to anyone. Take a look and see if MS Silverlight is
in your program install/install list.
"Peter" wrote:
> It is widely reported both on the INTERNET and at nVidia's forums:
> http://forums.nvidia.com/ - just Goggle nvlddmkm.sys and see what you get.
> It's an intermittent problem that has been with us for a while.
>
> --
> Peter
> Toronto, Canada
> "JW" <> wrote in message
> news:5E929332-426B-4CC4-821A-...
> > Possibly a WinUpdate made a Vista change to fix a security problem which
> > your current MOBO Bios does not support properly on your PCI bus.
> > I suggest checking to be sure you have the latest BIOS.
> > Since the problem does not occur constantly If could be related to a PS
> > issue, an overheating problem or a memory problem.
> > I suggest suggest running a memory diagnostic or switching your memory
> > dims.
> >
> > "geezer10" <> wrote in message
> > news:...
> >>
> >> your video cards are not resetting - you might have a motherboard
> >> problem - i would reset the cmos with the jumper next to the battery -
> >> and update BIOS - also try with only 1 monitor - 2 monitors will push
> >> your graphics to the limit.
> >>
> >> This problem can sometimes be fixed by upgrading power supply or
> >> switching ram but as you were working before this is not likely, still
> >> driver updates can change the power requirements etc.
> >>
> >> good to hear you saved your data - now you can experiment a bit more -
> >> i would get drivers direct from video card sites - perhaps reduce your
> >> system to minimal state and if you get it working again set a restore
> >> point
> >>
> >> sorry i cannot be more help but let us know if you do find the cause -
> >> good luck!
> >>
> >>
> >> --
> >> geezer10
> >
>
>