System link???

I've been having trble linking two 360's together.on call of duty 4 i hav linkd the two together but it wont let me play mor than one person per 360 and on graw(the first one) i cant get one system to recognize the game created on the other.any help???

System Link is weird how it works, but Call of Duty 4 is one player per box if u are doing system link even though u can do 4 player spiltscreen. Hear is a link to list of 360 games that have system link and tells the number of players per console.

http://en.wikipedia.org/wiki/List_of_Xbox_360_System_Link_games