Having trouble with my 220 updating on the map screen.

[BlacktailsNBobtails]

My 220 takes forever to load my map screen when I'm out running. The time it requires to draw the map takes forever and it is a huge pain to deal with when switching between the dog list and map screen. The other issue I am having is the speed in which the dogs position updates on my dog list. It seems like it picks up my actual location every 1/4 or 1/8 mile. Is this normal? Could it be my map card causing this? I'm running DC40's on all my collars.I did the whole system reset thing like Garmin suggested by holding the enter,menu and power button at the same time. what re your thought and suggestions?

[Steve White]

Certainly sounds like that could be the issue. What maps are you using? What size is the chip?