Yeah, I already did this with Lifepower.
The error occurs after second render cycle (first frame is rendered well) in procedure EndScene->FlushVertexBuffer following line of code:
if (Failed(VertexBuffer.Lock(0, BufSize * SizeOf(TPGVertex), p, 0))) then
This is line 1377 in AsphyreDev3.pas

Lifepower already tried to investigate the situation, but this error does not occur on his PCs so it is hard to find the problem.

I have 4 of 5 PCs where the little sample program hang up. On his PC it works...

I think I will upload this little sample code today and post a link here. Maybe we can then find out if I am the only one with these problems (Maybe its my WinXP installation causing the problems).

Would be nice if you could test this also then and post if the sample runs well on your system or not and maybe your system configuration.

Greetings,
Dirk