SDL Fullscreen lacking

Hello I having a program using SDL. But when im setting the program to run in fullscreen then the mouse pointer lacking. Here is my code for the vidio settings:

  screen=SDL_SetVideoMode(640,480,32,SDL_SWSURFACE|SDL_FULLSCREEN);
  if ( screen == NULL )
  {
    printf("Unable to set 640x480 video: %s\n", SDL_GetError());
    exit(1);
  }

For the rendering:

void DrawScene()
{
  DrawIMG(back, xpos-2, ypos-2, 132, 132, xpos-2, ypos-2);
  DrawIMG(image, xpos, ypos);
  DrawIMG(undermenu, 0, 326);

  SDL_Flip(screen);
}

Dont know if the last code block is nessesary but i have included if you are going to need it. In advance Thanks.