I didn't make it!
I've just installed Halo 2 on my PC and was surprised to see that there was no option to switch my resolution to 1440x900, which is the native resolution of my monitor.
Do you guys have any idea how I could get the game to run in 1440x900 resolution, because at the moment I'm having to play it at 1280x1024 which is causing the guns etc to be really close together etc. That and the fact that it'd look best running it at my monitor's native resolution.
Anyway, thanks in advance if anybody is able to help me out with this! :)
Apparently Halo 2 for Vista has limited widescreen support, and doesn't have some common widescreen resolutions, including 1440x900. That's a 16:10 aspect ratio, so see if you can use any other 16:10 resolutions. Some common ones are 1920x1200, 1680x1050, 1440x900, and 1280x800.
If none of those are available, try a 16:9 widescreen resolution. This is slightly wider than your 16:10 ratio, but it will look significantly better than a 5:4 or 4:3 ratio (like the 1280x1024 that you're using now). If they're available, try 1920x1080, 1600x900, 1366x768, or 1280x720.