I recently bought and installed Aliens vs Predator on my machine. Installation went fine and without any problems. However, when i try and run the game, I get the error message: "The program can't start because d3dx9_42.dll is missing from your computer...".
I read somewhere else on the net that this error is usually related to updating or installing directx and the solution given was to install the latest directx.
When I tried to do this, I got the error message: A cabinet file necessary for installation cannot be trusted. Please verify the Cryptographic Services are enabled and the cabinet file certificate is valid.
I'm running Windows 7 Ultimate. Any suggestions on how this problem might be resolved?
Thanks in advance