I am using Windows XP Pro with all upgrades available from the Microsoft
Windows Update. Recently, I installed the DirectX 9.0c and some issues
appeared:

While running games (Half-Life for example) my computer started doing one of
two things after having played for some time (for how long I can play before
this happens seems random):
My PC spontaneously restarts (I see a flash of a blue screen with white
text, but the computer restarts so fast it's impossible to read what it says).
Or it simply closes the game I was running and returns to the desktop (I
have experienced this with Internet Explorer as well...).

I am using a GeForce2 MX/MX 400, with the latest software update from nVIDIA
installed

What is the problem? What can I do? There is no way to uninstall DirectX,
and I have already tried reinstalling both DirectX and my video card driver
but it doesn't fix the problem.

Major thanks in advance

Kasper M. wrote:

> I am using Windows XP Pro with all upgrades available from the Microsoft
> Windows Update. Recently, I installed the DirectX 9.0c and some issues
> appeared:
>
> While running games (Half-Life for example) my computer started doing one of
> two things after having played for some time (for how long I can play before
> this happens seems random):
> My PC spontaneously restarts (I see a flash of a blue screen with white
> text, but the computer restarts so fast it's impossible to read what it says).
> Or it simply closes the game I was running and returns to the desktop (I
> have experienced this with Internet Explorer as well...).
>
> I am using a GeForce2 MX/MX 400, with the latest software update from nVIDIA
> installed
>
> What is the problem? What can I do? There is no way to uninstall DirectX,
> and I have already tried reinstalling both DirectX and my video card driver
> but it doesn't fix the problem.
>
> Major thanks in advance


Have you checked the temperature of your video card and power supply
right after a crash. Also, do you have any software to monitor the
power supplies voltages and log them to a file while you play the game
to see if the power supply is failing.