Half Life 2 loads fine and I'll be in deathmatch and then all of a sudden it exits out and I get this message:

"Failed to lock vertex buffer in cmesh DX8::LockVertexBuffer"

After doing my personal research I came across no solution. Most people are saying that there is no solution which is just awesome. If anyone knows anything about this problem please let me know.

Computer Specs:
Inspiron E1505
1.86 ghz duel core processor
1 gb ddr2 ram
Nvidea 7200 256mb video card
Win XP
Direct X 9

Looks like a DirectX problem. Have you installed the lastest nVidia drivers and newest version of DX?

Yeah... it seems like it should be a direct x problem but it's talking about dx8 and i have dx9c. after doing research the only "solution" that i've come across says:

I realised that if I del file ..\valve\steamApps\myUser\counter-strike source\bin\vidcfg.bin then I could play again. Then I made a file.bat whit the next instruccions:
del "C:\File Programs\Valve\Steam\ SteamApps\myUser\counter-strike source\bin\vidcfg.bin";
"C:\File Programs\Valve\Steam\Steam.exe" -applaunch 240;

Then I execute this .bat and I can play CS:S!!

I just don't understand what he means.

ok im getting the same error message. i just installed new ram and was unable to play css i switched back to old ram and it works fine ????? but i want my new ram in because its 1gb vs 256mb. so im trying to figure this shit out. now with the deleting vidcfg.bin file i tried it with half life 2 and it works, i did the same with css and still nowhere but i will keep trying as i am addicted to css and will stop at nothing

I have the same problem here...

System:
Pentium Dual Core 2.66 Ghz
1024 DDR2 Ram
NVIDIA GeForce 7300 SE 512MB
WinXP
Direct X 9.0c

I haven't got a solution jet. Does somebody know what to do next?
It really drives me crazy every time that error comes up.


This message was edited by Rivano on Oct 20 2006.

I get the same error on Half-Life 2: Lost Coast.

Specs:
Asus K8N-DL
Dual Opteron 242
1GB Corsair DDR400
Nvidia GeForce 7300LE

i get this error in CS:S whenever I alt tab out, then try to tab back into the game.

I have the same problem

Dell XPS 410

2.39 ghz proccesor
512 mb nvidia 7300le video card
1gb of ram
DirectX9c

Well I just got this error, too.

I was playing CS:S last night and for weeks with no problem, then I boot up this morning, play for 5 minutes and BOOM. Happens every time, I've restarted the PC, everything.

Other mods run no problem.

I get this when im playing lost coast

also, i have Dx9 and its says that my graphics card isnt direct x 9 capable even though it is.

I have the same thing for Garrys mod 10. Its pissing me off and I cant find a way to fix this. I use Ubuntu, a linux operating system and HL2 and all other Hl and HL2 games work just fine. It worked the first time but after that it just bombed Gmod. If anyone has a solution, email me at terbinan@yahoo.com PLEASE PLEASE PLEASE!!! I CANT TAKE IT ANYMORE!!!!

I have actually seen that once or twice before. Funny, because I was on an Nvidia card when it happened, too. Must be an Nvidia thing.

It's not an Nvidia card thing, since I've just started getting that same message and I've got an ATI Radeon X800 XL card. I really wish Valve would get off their lazy asses and figure out how to fix this growingly serious problem.

THIS IS SIMPLE JUST DOWNLOAD LASTEST DIRECT X AND MAKE SURE U RE-INSTALL UR VIDEO CARD.. WORKS EVERY TIME



That Simple...just trying to help.

quote Cheez It

THIS IS SIMPLE JUST DOWNLOAD LASTEST DIRECT X AND MAKE SURE U RE-INSTALL UR VIDEO CARD.. WORKS EVERY TIME



That Simple...just trying to help.

WARNING This user isn't as smart as he looks....

Running my computer with an Nvidia 7300GT with 3 day old drivers, 2 gigs of ram, 2.2 ghz processor, tried your ideas and it did absolutely no good.

This problem has been around for 3 years, Valve has no idea what to do. Apparently they're too "busy" to make an unlocking file for the vertex buffers or post an answer to any of us, in fact the emails I sent to them NEVER get replies back. I even tried contacting Nvidia and they said it probably was a fault made by steam which makes it incompatibie with advanced systems. I.E. if your comp has enough you play HL2 with like 60+ FPS it will actually crash the game.... Out of spite....