[SOLVED] Gap Between Edge of Window and Viewport [LWJGL]

Newbie & Debugging Questions
#1

So this is my problem.

I’m not sure why I’m getting the black gap and it’s really bugging me. It disappears when I resize the window. This is my code:

Setting up the window:

Display.setDisplayMode(new DisplayMode(800, 600));

Initializing the camera:

glOrtho(0, 800, 0, 600, 1, -1);

Rendering:

@Override
public void render() {
	glClearColor(1f, 0f, 0f, 0f);
	glClear(GL_COLOR_BUFFER_BIT);

	glPushMatrix();
	glTranslatef(x, y, 0);

	glBegin(GL_QUADS);
	glVertex2f(0, 0);
	glVertex2f(100, 0);
	glVertex2f(100, 100);
	glVertex2f(0, 100);
	glEnd();
	glPopMatrix();
}

Am I missing something or am I doing something wrong?