I recently bought an HP Pavillion dv2120us on CompUsa. It has:

AMD Turion 64x2 1.63Ghz Processor

NVIDIA Geforce Go 6150 256MB with Direct X 9.0c

1GB RAM

120 Hard Drive

XP Media Center 2005

and so on and so on...

I have the latest drivers of my Video card and the Direct X, but after a couple of min. of playing Half Life 2 the system crash with a looping sound and i get this message: "Failed to lock vertex buffer in CMeshDX8::LockVertexBuffer". Why? and, how can I resolve it? Sometimes it just freeze on the loadings. I followed the Steam support guides, but it doesn't seem to work.

Hope someone can help me on this one.