I have both 18 wheels of steel convoy and haulin and when i go to open them when i click play the resolution kcks down to what the settings are set for then it kicks back up to my setting and say prism3d.exe has encounterd an error. I have done the following:
1)Updated video card drivers
2)updated directx
3)uninstalled the game updated videocard drivers, restarted, reinstalled game.
4)uninstalled the game updated directx, restarted, updated videocard drivers, restarted, installed game.
All of the above and a few more posibilitys and all of them failed. i am running as follows:
P4 1.4Ghz
256 (RD) ram
64MB radeon 7500 (AGP)
Windows XP PRO
40GB hard drive
I have even gone thorugh the trouble of trying 2 other 32MB video cards. My last option if nobody has any sugestions is reinstall my O/S. Another thing i have tried is set my resolution to what i have set in the settings screen befor the game plays to what i have my desktop set to. Also i have gone thorugh the first 10 pages of a google search prism3d.exe error and have found nothing that has fixed this problem. ANY help is greatly apericated.

mr_guy

First of all, because of a separate software, you should never, NEVER, reinstall the OS. That will just add to your headaches when you find out that it still doesn't work.

Trust me, I have the EXACT same problem, although my computer is running on slightly-higher credentials. I have reason to believe that it's the video card: yes, it's updated, but is it supported by the game? Mine isn't, and therefore, it gives me the exact same error message.

Recently I contacted ValuSoft, the software manufacturer, for Convoy, regarding this issue. They said to upgrade the drivers and whatnot.

Superfly999

I've read a few threads and everyone one of them say upgrade the video card drivers.
Catalyst® 6.11 Display Driver for Windows XP Professional/Home Edition for the radeon 7500 driver. If you have already installed THIS driver (saw you said you updated video card drivers) then there is nothing more I can help you with.

*EDIT* Hmm, on the radeon site where I found that Catalyst driver it says that it supports from the Radeon® X1950 series to the Radeon® 9500 series cards but this is what it suggests for the 7500 series too. If you have problems I suppose just revert to your old driver.

cameron1331

just use lower settings i have the same problem (stupid computers)

alfonso oyola

hola a mi me da el mismo mensaje yo tengo un tarjeta de video 3d y le instale mas memoria pero me segue saliendo el mensaje nesecito que me ayuden a resulver este problema el juego pide 1.4 ghz de memoria y yo tengo 1.8 ghz me dicen que se supone que corra el programa.

greyfalcon2112

I am havin gthe same problem with 18 WOS Convoy, Haulin' and American Long Haul. Valusoft Customer service is CRAP! SCS Software has not responded to me e-mails, and to let you know, I'm running an HP m7257c with a 3.2 GHZ Pentium 4, 4 GB of RAM and a 512MB ATI Radeon HD 2600XT. So price of system or quality installed components don't count for beans when we get stuck with junk software that the company won't support. Sorry I couldn't be of more help dude.

laruv

try to install v1.06 patch guys. i got the same problem and after installing the patch, game is now working.