Engine error and hl2.exe error..

[Tuoppi_90]

I open half life 2 game ,
after movie it shut down hl2 and there comes popup window :

Engine error:Failed to lock vertex buffer in CMeshDX8::LockVertexBuffer
I Click Ok
And then there comes another error window :

hl2.exe - Application Error : The instruction at ``0x241f94f7`` referenced memory at``0x0dccf41c``. The memory could not be ``read``.
Click on Ok to terminate Program

Last month hl2 worked for me but now when i have tried update driver or dx9 and installing dx9runtime HL2 IS NOT WORKING.. But Cs works

System:
Windows XP Professional
Version 2002
Service Pack 2

Computer:
AMD Athlon(tm) 64 Processor 3500+
2,20 Ghz, 1,00Gb of RAM
Asus Extreme AX850 XT 256MB

I am sure that those system and computer things are OK but something is wrong in DirectX?!?!...(i have DX9c) Help!

 

[Beerdude26]

Try putting "-32bit" behind the game shortcut.

 

[Mucky-Funster]

I did a system restore to the last time i know it worked then I d/l latest graphics drivers