@
copyrite - Hmmm, that's interesting and weird. Assuming same version of calibre and the PI, it suggests some strange interaction betwixt the Search the Internet configuration data and the core configuration data - or another PI's configuration data.
If I were thee I would:-
- Secure the desktop configuration folder and replace it with the configuration folder from the laptop.
- If 1. works, I'd then do whatever is necessary to adjust the configuration to suit the desktop install, testing this PI along the way.
- If 1. doesn't work then... suggests some strange interaction betwixt the Search the Internet PI and/or its configuration data and the OS

BR