Ray tracing box intersections

Question

So I'm back with another ray tracing question. My code renders spheres all fine and dandy, but cubes aren't really working. I'm using this code to test for intersections: http://pastebin.com/qgm6vpdx (It's a recursive function, t is the distance to the intersection point) The bounding box is defined as:

Cube* c1 = new Cube;      
c1->Corner1 = Vec3(100, 100, 100);      
c1->Corner2 = Vec3(200, 200, 200);

I've confirmed that the camera is not inside the cube. Now, the only problem is that the entire screen shows up as green (the color designated to the cube)

I don't think I'm doing the cube intersections right, can anyone proof read my code?