hey guys im pretty new to maya and all. jus tryin sum tuts on the internet and decided to try somtin. but i ran into a problem on the lightin part. ok so here the scene
https://img485.imageshack.us/my.php?image=b4mw5.jpg

the object with a blinn, the two planes with lambert attributes.
the plane which is slanted is using final gather rays onto the object. ok now here is the render

https://img295.imageshack.us/img295/8858/aftermt0.jpg

my question is when i renderd it, the object is now showing two colours as you can see in the render. it goes from dark blue to light blue . can some1 please tell me what has happend here or is it supposed to be like that and what can be done to fix it.....

thx