i want to watch the new halo reach trailer but when it starts it asks for my birth date in [mm/dd/yyyy] so i tried but it doesn't work. my birthday is july 22 1990 and i have tried july 22 1990, july/22/1990, jl/22/1990, and [july 22 1990] and many others but i keep getting the words '' unknown date format'' in red letters. can anyone help me?