I am having trouble programming my radio via the programming cable.

I can get the radio into Clone mode by pressing the MHz PRI button on startup. However, it won't go into TX or RX by pushing the LOW/ACC or V/M MW button as described in the "cloning" section of the manual.

When I start Chirp and go to "download from radio" it gives me the box with Port com 3, radio Yaesu and Model FT-7800. When I try to download the profile from the radio I get the error message "failed to communicate with the radio: Failed to read header (0).

Now what?

Thanks Dave KG7HBQ