As I already said,
you can take any of your sample programs and add a line which prints out the color of a pixel every frame.

The example posted before in this topic crashes my systems.

I have found the problem with software renderer. I had the asphyreex.dll from pre-version still in windows\system32-Dir. After I deleted it, I was able to use software mode.

But I still don't know why Pixels in HW-mode crashes my systems. In software-mode it works well and prints out the correct color-value.
As soon as I change to HW-mode the system crashes.

When I use Pixels[x,y,1] instead of Pixels[x,y,0] the system stays stable, but always shows color $0. Maybe this helps you to find out something more.

OK, I hope you can find something out. If it was only one PC I would think it is maybe some kind of WinXP-config problem, but I can't use Pixels on two other WinXP-Systems.

I will try different other settings etc. Maybe I will find the problem. I know it is hard for you to find out something when the problem does not occur on your system. I will "feed" you with anything I find out.