Latest questions about "rand mcnally tnd dock"

How do I update my Sims card that has Rand McNally on it?

I have given up. I cannot get the Dock to launch on my new Windows 10 computer. My GPS is connected and shows connected. It does nothing. I have tried a message to tech support with no resolution.

Can't get new GPS 7735 to start up. Plug-in is green and lite on unit is red. Nothing shows on the screen. Can you help?

Program won't load on TND 720 LM and won't work on PC either. What can I do? I've just purchased this unit from Best Buy in March 2014.