battlefield 2 special forces

So , i have a BF2 Complete Pack in origin , and when i am going into the BF2 Special Forces ranked server , its says invalid cd-key , and gives me a link to buy a BF2 : Special Forces !!! What i must to do ?

it happens to me too . you have to reinstall the game surval times :damn suck i hate that problem

Try executing the origin client as admin? I had this problem with steam, in the main BF2 Game.