I recently re-installed XP because of a problem a problem I was having with Flight and Train Simulators, and subsequently DirectX 9. And I am experiencing exactly the same problem. DXDIAG is locking the computer completely while trying to display the Bouncing White Box in Full Screen Mode.
I have an NVidia FX 5200 with 128Mb of ram, if that's any help. The last time I used one of the simulators was about a month ago, and they were working perfectly up until then. Like DirectX, they also locked-up the computer just after they started.
Does anyone know what might be causing this rather annoying problem?
Thanks in advance.