my mousecode looks like this:
mouse_map = mouse_pcx;
enable_mouse = ON;
mouse_mode=2;
mouse_range=2000;
while(1)
{
mouse_pos.x = pointer.x;
mouse_pos.y = pointer.y;
wait(1);
}

i tried it also with a range of 100000 and mouse_mode=1, but no difference.