#1 ) Make sure you have the requirements to run Combat Arms
Use this site to check if you do, it's called Can You Run it: Can You Run It
Sorry for posting an outside link, but it does work and no viruses etc;
If you can't run it, then forget the next steps, you're screwed
#2 ) reinstall CA, remember to backup all your mods/hacks before so, so you don't cry
and then come back to us, we'll just say: "You fail [-FacePalm-]"
#3) Update DirectX
-Just google "Update DirectX" and you should be fine
Remember to visit the legit sites like Microsoft, and not some suspicious download site.
#4) It should work now
press the thanks button :d and feed my egg please
If it doesnt then the game may not run. Yes there are people who have run the game on the Intel GPU. For some strange reason after a patch or update the Intel GPU stops running the game. So, it doesnt matter if you have played before, it might not work now.
Also, run this test - Can You Run It. Your looking for hardware T&L, if your system fails the T&L test the game will not run at all, or it will not run propperly.