Hi, I'm using win32 and opengl and I have a window set up with the projection at glOrtho of the window's coordinates. I have double buffering enabled, tested it with glGet as well. My program always seems to tear any primitives that I try to draw on it if it's being constantly translated.

Here is my OpenGL initialization function:

glClearColor(0.0f, 0.0f, 0.0f, 1.0f);

glViewport(0, 0, 640, 480);
glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho(0, 640, 0, 480, 0, 100);

glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    glDrawBuffer(GL_BACK);

glLoadIdentity();

And this is my rendering function, gMouseX and gMouseY are the coordinates of the mouse:

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glTranslatef(gMouseX, gMouseY, 0.0f);
glColor3f(0.5f, 0.5f, 0.5f);
glBegin(GL_TRIANGLES);
    glVertex2f(0.0f, 128.0f);
    glVertex2f(128.0f, 0.0f);
    glVertex2f(0.0f, 0.0f);
glEnd();

SwapBuffers(hDC);

The same tearing problem occurs regardless of how often the rendering function runs. Is there something I'm doing wrong or missing here? Thanks for any help.