An auxiliary satellite positioning system is applied to a first satellite positioning apparatus. The first menu screen is provided for each of one or more video devices connected to the display device, and the second menu screen is provided for the display device. Further embodiments relocate the resources from a sub-cache to a different sub-cache based on their persistence score, and remove the resource from the memory based on the persistence score. Such data may be useful in diagnostic systems. The attenuation values measured are extrapolated into time 0.