Hey people, hope someon can help me here cause im sooo confused.

I bought Pinnacle studios today and have set it up from xbox to splitters in my tv to my laptop.
As of right now i have sound, a decent picture and can record BUT its in black and white.
It goes tocolour when i change i to pal 50 but my xbox wont play games. on pal 60 it goes to black nd white and and i baffled why.

I was told there would be no problems at all with this and getting quite annoyed after paying 90

If anyone can help id be very grateful, all i want now is colour.