for reference, it's spelled collision ;]

i don't know what's wrong with your code, but i'll show you the function i use, it works good for me:

bool boxCollision(float object1Bottom,float object1Top,float object1Left,float object1Right,float object2Top,float object2Bottom,float object2Left,float object2Right){	//Y BOX CHECK	if(object1Left <= object2Right && object1Right >= object2Left)	{		if(object1Top >= object2Bottom && object1Top <= object2Bottom + 2)		{			return true;		}		if(object1Bottom <= object2Top && object1Bottom >= object2Top - 2)		{			return true;		}	}	//X BOX CHECK	if(object1Top >= object2Bottom && object1Bottom <= object2Top)	{		if(object1Left <= object2Right && object1Left >= object2Right - 2)		{			return true;		}		if(object1Right >= object2Left && object1Right <= object2Left + 2)		{			return true;		}	}	return false;}

maybe a little confusing, but good enough. (sorry that there's so many parameters and the codes messy, it was my first AABB function.)

hope that helps

--nathan