Problems making a sprite move in C#

Hello, I am writing code to make an animation move on the screen, but when I run my code it doesn't move. I do not get any errors but does not work the way I want it to. Can someone please look at my code and let me know if there is something I am missing? I am running framework 4.0

Code:

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 void UpdateSprite(GameTime gameTime)
        {
            // Move the sprite by speed, scaled by elapsed time.
            spritePosition +=
                spriteSpeed * (float)gameTime.ElapsedGameTime.TotalSeconds;

            int MaxX =
                graphics.GraphicsDevice.Viewport.Width - myTexture.Width;
            int MinX = 0;
            int MaxY =
                graphics.GraphicsDevice.Viewport.Height - myTexture.Height;
            int MinY = 0;

            // will check for bounce.
            if (spritePosition.X > MaxX)
            {
                spriteSpeed.X *= -1;
                spritePosition.X = MaxX;
            }

            else if (spritePosition.X < MinX)
            {
                spriteSpeed.X *= -1;
                spritePosition.X = MinX;
            }

            if (spritePosition.Y > MaxY)
            {
                spriteSpeed.Y *= -1;
                spritePosition.Y = MaxY;
            }

            else if (spritePosition.Y < MinY)
            {
                spriteSpeed.Y *= -1;
                spritePosition.Y = MinY;
            }
        }

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