Hey, my friends just got halo CE, but for some reason whenever they try to get the list of servers on the menu, it says "An error has occured contacting the gamespy master server"
I've tried everything to help them out, but nothing works. The game is up to date, and they tried re-installing it but none of that worked. I am stumped.

If you have vista, go to the Halo file on your computer and update it by right clicking it and running it as administrator. Here is a picture tutorial.