Vista users, ESPECIALLY 32-bit, listen up!
Run Windows Update to get all your system updates
Install SP2(Service Pack 2)
Disable UAC(User Account Control)
Make sure your DirectX version is at the very least 9, but it should be 10
Do NOT run Combat Arms in compatibility mode
Do NOT rename the settings file
Rename the .asi file to AHN.asi for instance
Move the .asi and settings files into your Combat Arms folder
In the settings file you will see R, B, G values in 2 spots. One is IN FRONT OF and one is BEHIND walls. This is the value which sets the color for your chams. Use any number from 0-255 to choose your cham colors.
You MUST have both wallhack AND chams enabled to see the chams.
(Second time in 5 minutes I'm posting this. People need to READ and stop ASSUMING they know everything. Don't gloss over Dave's instructions. When he said UPDATE TO SP2 AND DISABLE UAC he meant it.)