FBSS????

Ok i have fbss and i have the escalade switch box with 6 switches now i know i have it wired up right cause i can go up and down if i just do the front and the back now when i try to do side to side all i get is the front right workin on its own. Now when i try and hit front left both fronts go down. When i try and do either of the rear by themselves they will go down both now could it be wires touchin somewhere or what? Any suggestions on what i should look at to see where they would be hitting if they are hitting? I will try anything right now to fix this dang thing. Thanx