leadtek winfast a350 texture flickering

Hello NG!

I recently bought a new graphics card with GeForceFX 5900XT chipset.
After running some tests I noticed texture flickering in some applications,
not really games (because this is not the primary cause why I upgraded
to a newer one).
Under WindowsXP (NVidia 61.77) I ran the new 3DMark 2005 bench, and beside
that it ran slow as hell (well, might be my AthlonXP 1800+ and the SDR-RAM)
with 2 to 7fps for the "normal" game tests, the cpu tests produced black
textures in some frames (these tests ran at 0fps).
Under Linux (Fedora Core 2 with NVidia 6111 drivers) I ran some
OpenGL-Java-Demos (under JDK-1.5.0), I then started one instance of

https://jogl-demos.dev.java.net/webstart/VertexArrayRange.jnlp

which worked out quite well, but then I started another demo from

https://jogl-demos.dev.java.net/

and the first demo produced texture errors as well (and of course got
slower).

So I don't really know what happens here, all I can say is that
if I stress my machine a lot the graphics card produces errors.
I don't think that this is a general problem of my machine since I ran a
Geforce 2 GTS there before without getting those errors when the framerates
of some applications drop.

So my Q is: Has anybody noticed these problems as well with this specific
graphics card? I did not overclock the card, it runs with manufacturing
settings (350MHz core, 700MHz ram), so it really should NOT produce any
errors.

Thanks for your answers!

Tommy.

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